Date	Amb_Median 	STD_Median	Amb_Mean	STD_Mean
1999/1/1	160.3	175.5	189.5	208.6
1999/1/2	489.2	547.6	576.6	643.8
1999/1/3	258.7	288.1	216.5	240.7
1999/1/4	NA	NA	NA	NA
1999/1/5	NA	NA	NA	NA
1999/1/6	270.2	296.6	385.7	423.6
1999/1/7	320.8	352.7	367.2	407.9
1999/1/8	372.8	415.0	355.9	396.2
1999/1/9	454.3	506.8	449.1	500.9
1999/1/10	464.2	514.3	460.7	510.9
1999/1/11	602.7	663.6	602.5	663.1
1999/1/12	540.2	595.6	541.4	596.9
1999/1/13	NA	NA	NA	NA
1999/1/14	372.3	407.6	372.3	407.6
1999/1/15	504.7	553.6	574.7	632.3
1999/1/16	372.4	414.4	426.6	473.8
1999/1/17	278.2	308.8	286.6	317.7
1999/1/18	450.5	495.9	449.1	494.0
1999/1/19	410.3	448.9	411.5	450.1
1999/1/20	457.8	499.7	460.5	502.2
1999/1/21	347.7	379.7	346.9	379.1
1999/1/22	478.0	522.5	461.0	503.7
1999/1/23	328.8	362.7	326.4	359.5
1999/1/24	326.7	360.8	328.6	362.4
1999/1/25	368.0	404.8	371.6	409.2
1999/1/26	301.0	330.8	302.8	332.8
1999/1/27	436.8	479.4	516.6	567.3
1999/1/28	497.5	553.7	517.1	573.2
1999/1/29	252.3	281.5	268.9	300.3
1999/1/30	375.5	417.2	460.7	511.3
1999/1/31	498.7	554.4	535.5	594.1
1999/2/1	900.5	998.1	1210.2	1343.7
1999/2/2	843.8	928.8	801.5	882.9
1999/2/3	639.3	703.4	639.3	703.4
1999/2/4	450.3	498.3	450.3	498.2
1999/2/5	479.0	528.4	487.9	538.6
1999/2/6	NA	NA	NA	NA
1999/2/7	NA	NA	NA	NA
1999/2/8	557.0	615.5	566.7	626.7
1999/2/9	605.2	665.3	608.1	669.1
1999/2/10	577.0	634.9	565.3	622.1
1999/2/11	509.0	560.7	511.1	563.2
1999/2/12	373.9	412.4	384.1	423.6
1999/2/13	467.4	514.3	466.1	512.7
1999/2/14	390.8	430.6	392.3	432.1
1999/2/15	398.4	438.2	391.8	430.8
1999/2/16	350.9	387.6	348.9	385.2
1999/2/17	467.2	517.3	464.1	513.6
1999/2/18	375.0	412.8	444.1	488.8
1999/2/19	712.0	780.5	747.0	819.2
1999/2/20	477.1	521.9	481.0	526.0
1999/2/21	436.3	478.5	428.5	469.3
1999/2/22	399.6	439.0	408.9	449.3
1999/2/23	359.7	394.7	357.8	392.2
1999/2/24	305.5	338.0	296.0	327.0
1999/2/25	258.8	289.7	349.8	391.4
1999/2/26	380.2	420.1	422.8	465.8
1999/2/27	515.3	562.6	546.1	598.1
1999/2/28	514.8	567.9	572.2	631.3
1999/3/1	405.5	446.5	412.6	453.9
1999/3/2	426.9	469.4	448.8	493.1
1999/3/3	583.0	642.8	563.0	621.6
1999/3/4	233.4	258.0	243.0	269.0
1999/3/5	183.4	205.1	233.0	259.3
1999/3/6	343.1	382.0	415.5	462.6
1999/3/7	530.0	592.6	534.3	597.2
1999/3/8	538.0	599.9	569.4	634.9
1999/3/9	450.2	499.7	428.0	475.0
1999/3/10	947.9	1049.2	816.5	903.4
1999/3/11	600.0	667.1	631.5	702.2
1999/3/12	598.8	666.3	640.2	712.0
1999/3/13	607.7	673.8	608.8	674.0
1999/3/14	684.8	755.9	659.6	728.2
1999/3/15	378.2	418.0	416.0	459.6
1999/3/16	357.4	393.2	304.2	335.4
1999/3/17	443.3	489.0	427.8	471.5
1999/3/18	812.7	895.2	725.5	799.8
1999/3/19	NA	NA	NA	NA
1999/3/20	371.2	407.4	366.0	401.7
1999/3/21	236.9	260.9	240.1	264.4
1999/3/22	333.9	370.3	336.5	373.3
1999/3/23	228.6	253.4	239.8	265.7
1999/3/24	275.2	306.2	330.1	367.9
1999/3/25	158.3	175.9	226.8	251.4
1999/3/26	172.8	190.1	173.4	190.8
1999/3/27	196.5	216.1	233.1	256.7
1999/3/28	289.8	320.7	318.6	353.3
1999/3/29	217.7	241.6	243.3	270.5
1999/3/30	247.0	275.0	225.0	250.5
1999/3/31	208.2	232.4	190.5	212.5
1999/4/1	164.3	184.3	244.5	274.3
1999/4/2	166.0	184.2	176.2	195.6
1999/4/3	114.3	125.8	111.7	123.0
1999/4/4	517.7	572.6	521.2	576.4
1999/4/5	499.0	552.4	488.7	542.8
1999/4/6	112.2	124.9	149.7	166.8
1999/4/7	125.5	139.5	138.6	154.2
1999/4/8	409.5	453.7	342.7	380.3
1999/4/9	373.7	414.0	366.2	406.1
1999/4/10	196.5	219.4	203.2	226.6
1999/4/11	65.0	72.4	104.4	116.4
1999/4/12	264.9	294.4	296.3	329.8
1999/4/13	309.9	341.6	325.2	358.7
1999/4/14	164.0	180.9	190.4	209.9
1999/4/15	160.0	177.7	171.2	190.7
1999/4/16	194.9	219.2	193.4	218.2
1999/4/17	122.2	135.6	132.3	147.2
1999/4/18	233.5	258.3	217.5	240.5
1999/4/19	190.3	210.0	199.2	219.7
1999/4/20	691.2	771.7	842.2	946.0
1999/4/21	517.4	582.2	490.5	551.6
1999/4/22	188.4	209.9	207.6	231.2
1999/4/23	105.0	118.2	105.2	118.0
1999/4/24	169.3	190.6	155.0	174.0
1999/4/25	159.8	177.6	156.8	174.1
1999/4/26	108.5	119.6	108.5	119.6
1999/4/27	239.2	268.5	236.5	263.9
1999/4/28	188.4	211.2	210.1	235.4
1999/4/29	188.6	211.4	192.9	216.0
1999/4/30	153.3	171.3	169.6	189.6
1999/5/1	138.9	155.4	127.3	141.7
1999/5/2	248.0	275.0	225.2	249.3
1999/5/3	183.1	204.8	199.5	223.4
1999/5/4	451.3	501.8	468.0	519.8
1999/5/5	117.8	131.7	115.0	128.7
1999/5/6	96.7	106.8	100.0	110.5
1999/5/7	109.1	120.8	120.2	132.5
1999/5/8	250.5	281.2	251.6	281.9
1999/5/9	222.8	249.7	233.1	261.1
1999/5/10	88.2	98.3	85.9	95.8
1999/5/11	87.0	97.3	113.6	127.0
1999/5/12	91.4	102.3	91.7	102.8
1999/5/13	167.3	187.1	147.5	164.8
1999/5/14	126.1	140.2	145.9	162.4
1999/5/15	NA	NA	NA	NA
1999/5/16	400.5	445.7	455.3	510.3
1999/5/17	213.6	244.3	436.5	497.5
1999/5/18	125.9	140.8	168.5	187.9
1999/5/19	76.1	84.5	71.7	79.8
1999/5/20	60.8	67.0	62.1	68.5
1999/5/21	48.9	54.2	55.9	62.0
1999/5/22	148.3	164.8	416.0	463.8
1999/5/23	683.8	777.2	867.5	988.7
1999/5/24	68.5	75.4	77.7	86.2
1999/5/25	65.0	71.3	64.9	71.3
1999/5/26	79.5	88.2	87.3	97.0
1999/5/27	39.4	43.5	48.3	53.3
1999/5/28	89.4	98.8	110.5	121.8
1999/5/29	147.9	161.4	151.6	165.9
1999/5/30	161.7	177.9	154.9	170.7
1999/5/31	147.7	163.8	153.9	170.5
1999/6/1	102.7	114.0	111.6	124.1
1999/6/2	90.2	100.7	106.2	119.0
1999/6/3	81.4	91.0	78.5	87.8
1999/6/4	157.4	175.6	149.9	167.4
1999/6/5	116.3	128.7	116.3	128.7
1999/6/6	178.2	196.3	168.9	185.7
1999/6/7	425.2	468.9	429.5	473.5
1999/6/8	120.9	132.8	135.9	149.2
1999/6/9	47.0	51.1	46.7	50.9
1999/6/10	46.0	50.0	48.5	52.8
1999/6/11	168.0	186.1	304.7	336.4
1999/6/12	114.6	126.3	148.7	163.8
1999/6/13	90.9	99.6	97.6	106.9
1999/6/14	107.7	118.3	111.1	122.3
1999/6/15	410.1	449.7	373.3	409.9
1999/6/16	112.4	121.3	131.1	141.8
1999/6/17	56.0	60.4	57.1	61.5
1999/6/18	56.0	60.2	56.0	60.2
1999/6/19	96.0	104.2	98.6	106.9
1999/6/20	127.2	137.9	129.8	140.8
1999/6/21	89.5	97.5	90.8	98.5
1999/6/22	70.2	76.5	71.2	77.6
1999/6/23	58.7	64.0	63.4	69.0
1999/6/24	89.0	96.9	88.5	96.3
1999/6/25	673.2	743.9	970.5	1067.4
1999/6/26	536.8	591.1	938.9	1040.5
1999/6/27	100.8	109.7	101.9	110.8
1999/6/28	135.6	147.5	134.8	147.0
1999/6/29	86.8	94.6	85.7	93.4
1999/6/30	158.2	173.3	212.6	233.4
1999/7/1	210.4	231.5	222.3	245.7
1999/7/2	144.0	162.4	197.4	221.1
1999/7/3	52.8	59.1	56.8	63.5
1999/7/4	66.5	74.6	67.7	75.7
1999/7/5	67.6	75.7	107.0	119.3
1999/7/6	25.5	28.6	26.7	30.0
1999/7/7	44.7	50.0	44.4	49.6
1999/7/8	63.5	71.1	59.6	66.6
1999/7/9	91.3	101.4	90.6	100.6
1999/7/10	68.3	75.3	74.3	82.0
1999/7/11	62.0	68.2	62.5	68.8
1999/7/12	62.5	68.8	61.8	67.9
1999/7/13	52.4	57.3	55.4	60.8
1999/7/14	68.4	75.3	70.3	77.7
1999/7/15	38.3	42.3	44.4	49.0
1999/7/16	54.0	59.4	50.8	55.7
1999/7/17	62.0	67.6	62.0	67.6
1999/7/18	40.5	44.1	40.5	44.1
1999/7/19	301.0	331.9	301.0	331.9
1999/7/20	401.0	439.7	370.3	406.8
1999/7/21	97.3	105.9	105.2	114.7
1999/7/22	127.7	138.2	129.5	140.1
1999/7/23	299.8	332.8	481.7	533.9
1999/7/24	300.7	329.3	258.6	283.8
1999/7/25	164.2	182.0	180.5	200.6
1999/7/26	168.1	192.0	173.6	197.4
1999/7/27	63.0	71.2	64.2	72.5
1999/7/28	69.5	78.0	69.6	77.8
1999/7/29	31.0	34.3	36.2	40.1
1999/7/30	60.5	67.3	58.8	65.5
1999/7/31	74.0	82.2	74.1	82.4
1999/8/1	53.3	58.1	53.9	58.7
1999/8/2	72.5	78.8	70.3	76.5
1999/8/3	60.7	66.2	67.1	73.3
1999/8/4	71.0	78.3	83.5	91.9
1999/8/5	64.0	70.2	63.4	69.6
1999/8/6	41.0	44.4	41.7	45.2
1999/8/7	137.3	150.4	135.9	148.9
1999/8/8	87.5	96.5	86.7	95.6
1999/8/9	75.0	83.7	83.3	92.9
1999/8/10	68.0	75.6	71.9	80.0
1999/8/11	153.0	170.1	145.4	161.6
1999/8/12	NA	NA	NA	NA
1999/8/13	300.0	328.6	300.0	328.6
1999/8/14	88.7	100.0	168.8	186.5
1999/8/15	380.3	422.9	379.6	424.8
1999/8/16	193.7	213.1	202.2	222.9
1999/8/17	59.0	66.3	59.0	66.1
1999/8/18	50.0	56.3	64.7	72.8
1999/8/19	97.0	108.0	100.6	112.1
1999/8/20	82.8	91.3	78.8	87.0
1999/8/21	75.8	83.9	77.2	85.5
1999/8/22	64.0	70.7	64.0	70.7
1999/8/23	105.0	115.2	110.2	120.8
1999/8/24	112.2	122.8	120.6	131.9
1999/8/25	122.0	133.1	126.7	138.7
1999/8/26	125.9	140.9	133.5	148.8
1999/8/27	118.2	131.5	122.0	135.4
1999/8/28	110.2	122.5	107.9	119.9
1999/8/29	169.0	185.0	187.9	205.5
1999/8/30	144.0	156.9	182.0	198.5
1999/8/31	188.9	208.1	210.7	232.2
1999/9/1	212.8	237.7	223.8	248.6
1999/9/2	202.3	226.6	230.5	257.7
1999/9/3	375.2	419.5	356.1	397.8
1999/9/4	330.0	367.0	344.4	383.3
1999/9/5	242.7	268.8	259.8	289.6
1999/9/6	225.4	247.2	222.5	244.4
1999/9/7	NA	NA	NA	NA
1999/9/8	NA	NA	NA	NA
1999/9/9	176.2	194.0	180.8	199.2
1999/9/10	113.0	123.7	135.7	148.4
1999/9/11	242.5	263.0	242.5	262.9
1999/9/12	279.9	302.6	287.8	311.5
1999/9/13	238.8	262.3	223.1	244.8
1999/9/14	252.9	277.0	254.6	279.1
1999/9/15	366.3	402.3	356.7	391.9
1999/9/16	NA	NA	NA	NA
1999/9/17	237.8	259.6	252.9	276.7
1999/9/18	311.6	343.1	348.0	382.7
1999/9/19	392.1	435.2	384.5	426.8
1999/9/20	360.7	397.4	393.3	433.2
1999/9/21	387.5	426.2	407.3	448.1
1999/9/22	446.0	492.2	444.8	490.8
1999/9/23	358.3	395.2	418.7	461.1
1999/9/24	283.5	312.1	281.8	310.1
1999/9/25	281.0	310.0	275.8	304.4
1999/9/26	179.9	198.5	166.2	183.4
1999/9/27	57.8	64.1	55.0	61.0
1999/9/28	43.8	48.4	45.4	50.0
1999/9/29	75.0	82.8	75.4	82.9
1999/9/30	247.2	275.0	192.3	213.8
1999/10/1	289.3	321.5	263.5	292.2
1999/10/2	132.0	147.3	182.4	203.0
1999/10/3	238.3	268.0	212.9	238.6
1999/10/4	271.9	301.9	271.1	301.3
1999/10/5	3119.9	3597.9	2842.7	3286.1
1999/10/6	180.7	205.8	681.9	790.3
1999/10/7	214.7	241.5	227.1	255.1
1999/10/8	282.5	314.3	289.8	322.6
1999/10/9	281.7	314.8	283.5	316.9
1999/10/10	304.5	341.7	300.2	336.6
1999/10/11	NA	NA	NA	NA
1999/10/12	347.6	390.7	338.2	379.9
1999/10/13	446.7	500.1	438.0	489.3
1999/10/14	267.0	298.3	259.3	289.8
1999/10/15	297.0	332.6	295.7	331.5
1999/10/16	304.4	339.9	303.9	340.2
1999/10/17	287.3	320.4	441.6	493.5
1999/10/18	328.8	364.7	356.4	396.6
1999/10/19	346.9	379.5	347.0	380.5
1999/10/20	415.0	457.5	408.9	451.2
1999/10/21	671.2	756.8	662.4	743.2
1999/10/22	446.3	503.4	449.1	506.6
1999/10/23	NA	NA	NA	NA
1999/10/24	NA	NA	NA	NA
1999/10/25	507.8	564.9	507.6	564.5
1999/10/26	359.1	402.9	393.2	440.9
1999/10/27	347.6	389.8	329.8	370.2
1999/10/28	205.4	230.5	215.9	242.5
1999/10/29	249.9	282.5	245.5	277.4
1999/10/30	190.6	213.3	196.3	219.3
1999/10/31	165.5	184.1	165.5	184.1
1999/11/1	203.1	226.6	203.1	226.8
1999/11/2	347.2	385.2	360.7	400.5
1999/11/3	385.1	428.6	430.9	479.4
1999/11/4	527.0	587.2	515.2	574.1
1999/11/5	258.4	285.5	262.3	290.0
1999/11/6	399.8	440.4	450.5	496.2
1999/11/7	422.4	463.6	474.8	519.1
1999/11/8	440.2	478.3	547.1	595.8
1999/11/9	784.4	863.1	739.9	814.2
1999/11/10	520.9	574.7	579.0	639.0
1999/11/11	712.3	786.1	713.2	786.9
1999/11/12	346.8	382.7	352.2	389.0
1999/11/13	360.7	399.1	362.3	400.9
1999/11/14	409.7	455.2	407.0	451.9
1999/11/15	288.1	320.3	298.1	331.2
1999/11/16	295.4	327.9	300.0	333.4
1999/11/17	382.8	425.8	370.3	411.8
1999/11/18	339.0	374.8	397.6	439.4
1999/11/19	604.5	673.5	611.2	679.1
1999/11/20	486.5	544.7	491.8	550.5
1999/11/21	460.8	512.7	464.4	517.3
1999/11/22	416.0	460.8	416.3	461.4
1999/11/23	378.3	418.8	376.6	417.1
1999/11/24	197.5	218.0	206.8	229.0
1999/11/25	191.6	211.2	196.0	215.9
1999/11/26	194.7	215.3	195.6	216.0
1999/11/27	228.9	253.0	223.7	247.5
1999/11/28	222.8	245.9	221.6	244.9
1999/11/29	170.9	190.0	176.8	196.5
1999/11/30	353.8	395.8	347.3	388.3
1999/12/1	205.5	230.8	214.8	241.5
1999/12/2	153.3	171.0	157.6	175.7
1999/12/3	199.4	221.5	267.6	297.8
1999/12/4	537.9	604.1	530.0	594.6
1999/12/5	445.0	497.4	450.1	502.1
1999/12/6	413.9	464.6	411.7	459.5
1999/12/7	344.2	388.8	486.1	548.7
1999/12/8	359.0	406.1	407.4	461.6
1999/12/9	371.8	418.3	384.6	432.1
1999/12/10	439.0	490.7	456.8	510.2
1999/12/11	454.2	503.1	439.8	487.6
1999/12/12	401.0	444.9	367.5	409.6
1999/12/13	1533.0	1719.9	1549.1	1738.9
1999/12/14	446.1	497.3	486.2	542.9
1999/12/15	386.9	431.1	401.3	447.0
1999/12/16	377.7	417.4	372.7	412.8
1999/12/17	576.2	636.8	649.2	718.2
1999/12/18	691.9	766.9	773.3	856.6
1999/12/19	1141.7	1261.6	1070.7	1182.4
1999/12/20	528.5	580.3	561.9	617.6
1999/12/21	567.2	622.5	534.4	586.6
1999/12/22	487.9	538.6	484.0	534.0
1999/12/23	355.9	395.0	368.2	410.0
1999/12/24	387.7	432.6	370.3	413.7
1999/12/25	NA	NA	NA	NA
1999/12/26	321.6	354.3	321.6	354.3
1999/12/27	307.0	338.7	306.9	338.7
1999/12/28	277.2	306.0	282.9	312.3
1999/12/29	291.0	321.2	296.8	327.7
1999/12/30	354.7	392.4	355.2	393.0
1999/12/31	NA	NA	NA	NA