Date	Amb_Median 	STD_Median	Amb_Mean	STD_Mean
1997/1/1				
1997/1/2				
1997/1/3				
1997/1/4				
1997/1/5				
1997/1/6				
1997/1/7				
1997/1/8				
1997/1/9				
1997/1/10				
1997/1/11				
1997/1/12				
1997/1/13				
1997/1/14				
1997/1/15				
1997/1/16				
1997/1/17				
1997/1/18				
1997/1/19				
1997/1/20				
1997/1/21				
1997/1/22				
1997/1/23				
1997/1/24				
1997/1/25				
1997/1/26				
1997/1/27				
1997/1/28				
1997/1/29				
1997/1/30				
1997/1/31				
1997/2/1				
1997/2/2				
1997/2/3				
1997/2/4				
1997/2/5				
1997/2/6				
1997/2/7				
1997/2/8				
1997/2/9				
1997/2/10				
1997/2/11				
1997/2/12				
1997/2/13				
1997/2/14				
1997/2/15				
1997/2/16				
1997/2/17				
1997/2/18				
1997/2/19				
1997/2/20				
1997/2/21				
1997/2/22				
1997/2/23				
1997/2/24				
1997/2/25				
1997/2/26				
1997/2/27				
1997/2/28				
1997/3/1				
1997/3/2				
1997/3/3				
1997/3/4				
1997/3/5				
1997/3/6				
1997/3/7				
1997/3/8				
1997/3/9				
1997/3/10				
1997/3/11				
1997/3/12				
1997/3/13				
1997/3/14				
1997/3/15				
1997/3/16				
1997/3/17				
1997/3/18				
1997/3/19				
1997/3/20				
1997/3/21				
1997/3/22				
1997/3/23				
1997/3/24				
1997/3/25				
1997/3/26				
1997/3/27				
1997/3/28				
1997/3/29				
1997/3/30				
1997/3/31				
1997/4/1				
1997/4/2				
1997/4/3				
1997/4/4				
1997/4/5				
1997/4/6				
1997/4/7				
1997/4/8				
1997/4/9				
1997/4/10				
1997/4/11				
1997/4/12				
1997/4/13				
1997/4/14				
1997/4/15				
1997/4/16				
1997/4/17				
1997/4/18				
1997/4/19				
1997/4/20				
1997/4/21				
1997/4/22				
1997/4/23				
1997/4/24				
1997/4/25				
1997/4/26				
1997/4/27				
1997/4/28				
1997/4/29				
1997/4/30				
1997/5/1	92.8	103.1	91.9	102.2
1997/5/2	98.7	109.1	96.9	106.9
1997/5/3	79.9	87.6	78.1	85.6
1997/5/4	62.5	68.7	62.2	68.5
1997/5/5	51.8	57.5	54.6	60.7
1997/5/6	61.6	68.3	81.1	89.7
1997/5/7	206.5	227.7	251.3	277.6
1997/5/8	150.8	169.7	345.1	387.6
1997/5/9	83.7	93.8	84.9	95.2
1997/5/10	57.3	63.7	58.8	65.6
1997/5/11	44.8	49.6	45.7	50.6
1997/5/12	34.8	38.5	35.6	39.4
1997/5/13	100.1	110.4	87.9	97.0
1997/5/14	101.7	112.4	102.3	113.2
1997/5/15	180.8	199.5	183.8	202.8
1997/5/16	308.2	339.8	315.1	347.3
1997/5/17	143.3	158.5	169.7	187.6
1997/5/18	121.4	134.4	130.3	144.7
1997/5/19	87.2	96.4	108.4	120.1
1997/5/20	1876.0	2083.2	1636.0	1833.8
1997/5/21	494.9	552.1	502.5	563.5
1997/5/22	59.2	65.6	64.3	71.2
1997/5/23	88.0	98.5	100.1	111.4
1997/5/24	82.5	91.7	81.6	91.1
1997/5/25	65.9	72.7	65.9	72.7
1997/5/26	99.5	109.3	101.5	111.3
1997/5/27	82.4	91.7	83.4	92.2
1997/5/28	89.7	101.0	99.3	111.7
1997/5/29	74.2	83.3	76.3	85.7
1997/5/30	86.6	97.0	101.5	113.9
1997/5/31	171.0	192.9	174.8	197.1
1997/6/1	166.3	185.3	155.5	172.6
1997/6/2	155.8	171.3	151.4	166.5
1997/6/3	114.3	125.8	111.1	122.4
1997/6/4	397.1	436.9	333.8	367.2
1997/6/5	798.5	883.3	761.1	840.2
1997/6/6	97.0	107.6	243.0	269.8
1997/6/7	53.6	59.8	53.3	59.4
1997/6/8	35.6	39.2	37.4	41.3
1997/6/9	33.8	37.4	32.2	35.8
1997/6/10	17.8	19.8	18.0	20.0
1997/6/11	10.3	11.3	12.1	13.3
1997/6/12	1042.0	1153.9	1201.2	1337.3
1997/6/13	59.5	66.3	210.6	234.9
1997/6/14	61.3	67.2	58.5	64.2
1997/6/15	131.3	146.2	138.8	154.2
1997/6/16	99.0	108.7	100.1	110.0
1997/6/17	2485.0	2703.1	2358.0	2577.5
1997/6/18	3577.3	3938.6	3105.0	3413.9
1997/6/19	86.0	92.6	109.3	117.8
1997/6/20	91.0	99.8	98.0	107.0
1997/6/21	46.0	49.9	43.6	47.3
1997/6/22	48.0	52.2	48.3	52.4
1997/6/23	50.7	55.2	51.7	56.3
1997/6/24	51.5	56.2	51.2	55.9
1997/6/25	44.0	47.9	42.4	46.2
1997/6/26	33.7	36.8	37.5	40.9
1997/6/27	51.3	56.0	50.9	55.4
1997/6/28	68.9	74.9	66.1	71.8
1997/6/29	30.1	33.0	28.7	31.4
1997/6/30	12.3	13.4	13.2	14.4
1997/7/1	19.8	21.6	19.8	21.6
1997/7/2	43.2	47.6	41.6	45.8
1997/7/3	46.1	51.1	45.1	50.0
1997/7/4	113.0	124.5	115.8	127.7
1997/7/5	63.5	69.6	62.1	68.1
1997/7/6	81.8	90.0	79.1	87.1
1997/7/7	66.5	74.7	66.1	73.6
1997/7/8	78.8	88.4	77.9	87.4
1997/7/9	69.5	77.3	69.1	76.9
1997/7/10	44.7	49.7	49.4	54.9
1997/7/11	52.4	58.3	52.7	58.8
1997/7/12	65.6	74.1	64.1	72.5
1997/7/13	45.3	51.3	53.3	60.0
1997/7/14	44.6	49.5	46.1	51.3
1997/7/15	66.3	72.9	63.3	69.6
1997/7/16	75.2	83.0	71.3	78.9
1997/7/17	63.5	70.3	61.5	68.1
1997/7/18	119.3	131.9	106.4	117.6
1997/7/19	79.0	87.2	81.6	90.1
1997/7/20	68.8	76.2	67.6	75.0
1997/7/21	53.8	59.9	56.3	62.7
1997/7/22	53.7	59.3	58.2	64.5
1997/7/23	39.2	43.1	40.9	45.0
1997/7/24	34.0	37.2	34.0	37.2
1997/7/25	23.0	25.2	31.2	34.2
1997/7/26	NA	NA	NA	NA
1997/7/27	NA	NA	NA	NA
1997/7/28	NA	NA	NA	NA
1997/7/29	63.0	69.8	61.2	68.0
1997/7/30	133.6	151.1	211.3	238.5
1997/7/31	64.0	71.3	140.5	157.5
1997/8/1	55.3	61.5	63.4	70.7
1997/8/2	52.8	59.2	55.8	62.5
1997/8/3	61.9	70.1	60.9	68.8
1997/8/4	308.8	342.0	289.7	321.1
1997/8/5	280.6	314.4	252.7	280.4
1997/8/6	403.5	448.7	516.7	578.1
1997/8/7	83.2	93.9	118.7	132.7
1997/8/8	48.0	54.1	54.1	60.9
1997/8/9	41.7	46.1	44.3	48.8
1997/8/10	85.0	94.3	86.1	95.3
1997/8/11	109.2	120.8	116.6	129.0
1997/8/12	471.9	519.0	570.6	631.1
1997/8/13	36.3	39.9	56.7	62.2
1997/8/14	159.8	176.5	208.1	229.9
1997/8/15	137.1	151.9	137.4	152.5
1997/8/16	120.7	133.1	123.0	135.8
1997/8/17	35.3	38.9	39.4	43.2
1997/8/18	71.2	77.9	71.2	77.9
1997/8/19	123.0	135.5	129.3	142.6
1997/8/20	77.7	86.9	111.8	125.0
1997/8/21	51.9	57.8	54.1	60.0
1997/8/22	69.0	76.1	70.4	77.6
1997/8/23	67.3	74.5	67.3	74.6
1997/8/24	68.3	75.0	67.7	74.4
1997/8/25	82.7	91.1	81.9	90.6
1997/8/26	49.8	55.0	56.8	63.2
1997/8/27	184.3	205.5	191.6	214.4
1997/8/28	406.5	455.7	398.2	447.2
1997/8/29	161.5	181.6	185.7	208.5
1997/8/30	118.0	131.7	116.6	130.7
1997/8/31	113.7	126.5	120.1	133.7
1997/9/1	NA	NA	NA	NA
1997/9/2	NA	NA	NA	NA
1997/9/3	102.1	112.8	102.1	112.8
1997/9/4	139.3	152.0	139.3	152.0
1997/9/5	149.0	162.0	152.3	165.7
1997/9/6	145.8	161.2	147.0	162.2
1997/9/7	111.8	123.8	111.0	122.7
1997/9/8	88.3	97.6	88.7	98.2
1997/9/9	100.5	111.5	101.6	112.7
1997/9/10	105.3	116.1	108.8	119.9
1997/9/11	118.0	129.7	117.6	129.2
1997/9/12	NA	NA	NA	NA
1997/9/13	631.2	699.1	616.9	686.3
1997/9/14	461.8	516.5	461.2	516.1
1997/9/15	220.8	242.4	242.4	266.8
1997/9/16	165.6	181.8	160.3	175.9
1997/9/17	206.0	227.4	231.9	257.9
1997/9/18	201.2	224.2	232.5	259.3
1997/9/19	170.0	188.6	170.0	188.6
1997/9/20	253.6	277.1	252.8	276.1
1997/9/21	193.2	210.9	217.6	237.4
1997/9/22	681.8	751.9	649.6	717.2
1997/9/23	409.9	452.6	409.1	451.4
1997/9/24	438.9	486.2	451.9	500.3
1997/9/25	452.3	493.8	477.0	523.0
1997/9/26	760.6	836.6	651.9	717.3
1997/9/27	681.8	748.9	688.9	758.7
1997/9/28	815.5	892.2	801.7	878.0
1997/9/29	837.5	919.7	755.2	830.1
1997/9/30	506.8	558.2	506.1	557.2
1997/10/1	944.3	1043.3	945.5	1045.8
1997/10/2	583.3	645.2	585.1	647.1
1997/10/3	342.3	378.4	341.7	377.9
1997/10/4	NA	NA	NA	NA
1997/10/5	199.7	220.6	200.5	221.6
1997/10/6	195.8	215.9	200.0	220.5
1997/10/7	252.8	281.5	253.5	281.9
1997/10/8	260.2	286.6	257.1	285.3
1997/10/9	370.0	407.2	1224.4	1345.7
1997/10/10	396.3	434.9	1636.5	1793.8
1997/10/11	288.8	317.0	282.1	309.6
1997/10/12	331.5	365.6	341.2	376.3
1997/10/13	379.9	420.3	381.1	421.6
1997/10/14	370.8	409.6	369.8	408.3
1997/10/15	205.2	226.6	213.7	234.9
1997/10/16	168.4	185.7	171.2	188.6
1997/10/17	117.8	129.1	117.8	129.1
1997/10/18	185.8	204.2	166.4	183.0
1997/10/19	133.3	147.6	139.7	154.7
1997/10/20	186.3	207.4	197.1	219.2
1997/10/21	NA	NA	NA	NA
1997/10/22	174.4	192.2	174.3	192.2
1997/10/23	227.5	253.5	216.1	240.5
1997/10/24	328.1	368.1	330.3	370.4
1997/10/25	240.3	269.6	221.1	247.5
1997/10/26	206.2	229.7	191.3	213.1
1997/10/27	184.5	205.1	178.8	198.5
1997/10/28	128.3	142.3	129.8	144.1
1997/10/29	273.0	309.3	453.7	511.8
1997/10/30	269.1	302.6	267.9	302.0
1997/10/31	305.0	341.6	301.6	337.8
1997/11/1	240.0	267.9	243.3	271.9
1997/11/2	304.0	338.1	315.2	350.9
1997/11/3	394.3	444.0	397.2	447.1
1997/11/4	325.7	362.6	414.4	459.6
1997/11/5	708.8	774.2	713.7	780.1
1997/11/6	484.6	532.3	478.7	525.1
1997/11/7	292.4	321.4	282.5	309.9
1997/11/8	194.1	210.9	204.5	222.3
1997/11/9	250.3	272.9	250.6	273.3
1997/11/10	440.8	477.4	439.9	476.1
1997/11/11	534.2	576.3	506.4	546.4
1997/11/12	469.3	508.4	501.1	542.2
1997/11/13	384.1	416.1	385.3	417.5
1997/11/14	381.4	411.3	380.3	410.1
1997/11/15	391.7	424.5	447.0	486.2
1997/11/16	532.0	587.1	564.4	624.7
1997/11/17	230.9	256.1	259.1	285.2
1997/11/18	211.5	229.2	208.7	226.2
1997/11/19	204.0	221.8	203.7	221.9
1997/11/20	244.8	266.3	256.1	278.6
1997/11/21	192.8	209.1	236.3	255.8
1997/11/22	314.9	340.7	326.4	353.2
1997/11/23	162.1	175.3	152.0	164.4
1997/11/24	125.1	135.6	129.6	140.4
1997/11/25	142.6	154.4	161.4	174.6
1997/11/26	285.2	308.6	285.2	308.7
1997/11/27	302.0	329.8	313.9	343.1
1997/11/28	254.9	281.3	258.9	285.9
1997/11/29	295.3	327.0	282.5	313.3
1997/11/30	219.2	244.7	271.6	302.6
1997/12/1	388.7	431.0	381.3	422.6
1997/12/2	335.4	368.6	330.0	362.4
1997/12/3	317.0	347.5	330.7	362.7
1997/12/4	267.8	294.3	269.0	295.9
1997/12/5	269.7	296.2	273.0	299.9
1997/12/6	NA	NA	NA	NA
1997/12/7	NA	NA	NA	NA
1997/12/8	276.0	304.4	271.6	299.6
1997/12/9	210.5	232.6	252.9	279.8
1997/12/10	239.7	264.0	239.8	264.3
1997/12/11	346.2	383.6	351.9	390.1
1997/12/12	360.5	398.7	464.3	513.3
1997/12/13	725.7	798.6	797.0	877.3
1997/12/14	437.1	481.7	459.3	506.0
1997/12/15	741.8	816.4	741.8	816.4
1997/12/16	545.8	604.4	550.2	608.6
1997/12/17	339.6	373.4	372.4	410.4
1997/12/18	452.7	504.9	438.4	487.9
1997/12/19	339.4	375.7	445.7	491.1
1997/12/20	466.4	511.6	463.2	508.0
1997/12/21	298.5	327.0	342.0	375.7
1997/12/22	1804.1	1984.8	2488.4	2736.4
1997/12/23	3029.5	3326.6	2756.9	3028.5
1997/12/24	605.5	664.4	634.1	695.7
1997/12/25	519.1	570.2	519.1	570.2
1997/12/26	471.1	516.0	471.1	516.0
1997/12/27	369.1	403.9	382.8	419.2
1997/12/28	421.9	461.9	425.9	466.2
1997/12/29	334.3	368.5	339.4	373.1
1997/12/30	373.6	412.3	552.3	609.0
1997/12/31	391.2	435.4	418.3	463.9