1981/01/01	121.00
1981/01/02	117.00
1981/01/03	125.00
1981/01/04	143.00
1981/01/05	154.00
1981/01/06	151.00
1981/01/07	139.00
1981/01/08	121.00
1981/01/09	90.00
1981/01/10	68.00
1981/01/11	72.00
1981/01/12	108.00
1981/01/13	141.00
1981/01/14	152.00
1981/01/15	155.00
1981/01/16	139.00
1981/01/17	126.00
1981/01/18	121.00
1981/01/19	119.00
1981/01/20	102.00
1981/01/21	101.00
1981/01/22	100.00
1981/01/23	101.00
1981/01/24	104.00
1981/01/25	106.00
1981/01/26	118.00
1981/01/27	120.00
1981/01/28	120.00
1981/01/29	120.00
1981/01/30	119.00
1981/01/31	118.00
1981/02/01	118.00
1981/02/02	118.00
1981/02/03	119.00
1981/02/04	122.00
1981/02/05	135.00
1981/02/06	137.00
1981/02/07	135.00
1981/02/08	128.00
1981/02/09	124.00
1981/02/10	118.00
1981/02/11	118.00
1981/02/12	118.00
1981/02/13	118.00
1981/02/14	119.00
1981/02/15	119.00
1981/02/16	129.00
1981/02/17	145.00
1981/02/18	142.00
1981/02/19	127.00
1981/02/20	117.00
1981/02/21	115.00
1981/02/22	115.00
1981/02/23	127.00
1981/02/24	141.00
1981/02/25	140.00
1981/02/26	139.00
1981/02/27	142.00
1981/02/28	142.00
1981/03/01	135.00
1981/03/02	121.00
1981/03/03	122.00
1981/03/04	122.00
1981/03/05	122.00
1981/03/06	122.00
1981/03/07	122.00
1981/03/08	122.00
1981/03/09	122.00
1981/03/10	121.00
1981/03/11	121.00
1981/03/12	121.00
1981/03/13	121.00
1981/03/14	130.00
1981/03/15	130.00
1981/03/16	132.00
1981/03/17	133.00
1981/03/18	134.00
1981/03/19	122.00
1981/03/20	121.00
1981/03/21	121.00
1981/03/22	121.00
1981/03/23	121.00
1981/03/24	120.00
1981/03/25	120.00
1981/03/26	120.00
1981/03/27	119.00
1981/03/28	124.00
1981/03/29	140.00
1981/03/30	142.00
1981/03/31	142.00
1981/04/01	130.70
1981/04/02	128.00
1981/04/03	116.50
1981/04/04	116.50
1981/04/05	116.50
1981/04/06	116.50
1981/04/07	116.50
1981/04/08	117.70
1981/04/09	114.20
1981/04/10	110.80
1981/04/11	113.10
1981/04/12	116.50
1981/04/13	122.30
1981/04/14	122.30
1981/04/15	120.00
1981/04/16	121.10
1981/04/17	107.30
1981/04/18	100.00
1981/04/19	107.30
1981/04/20	124.60
1981/04/21	126.90
1981/04/22	110.80
1981/04/23	106.20
1981/04/24	111.90
1981/04/25	115.40
1981/04/26	120.00
1981/04/27	117.70
1981/04/28	122.30
1981/04/29	128.00
1981/04/30	120.00
1981/05/01	114.20
1981/05/02	132.10
1981/05/03	140.20
1981/05/04	132.10
1981/05/05	116.50
1981/05/06	110.80
1981/05/07	111.90
1981/05/08	124.60
1981/05/09	134.80
1981/05/10	144.20
1981/05/11	146.90
1981/05/12	148.30
1981/05/13	144.20
1981/05/14	123.40
1981/05/15	117.70
1981/05/16	132.10
1981/05/17	153.70
1981/05/18	167.10
1981/05/19	171.20
1981/05/20	164.50
1981/05/21	146.90
1981/05/22	142.90
1981/05/23	144.20
1981/05/24	156.40
1981/05/25	213.60
1981/05/26	400.00
1981/05/27	547.90
1981/05/28	486.00
1981/05/29	555.90
1981/05/30	614.20
1981/05/31	635.30
1981/06/01	608.80
1981/06/02	622.10
1981/06/03	571.80
1981/06/04	479.60
1981/06/05	455.90
1981/06/06	483.80
1981/06/07	542.60
1981/06/08	563.80
1981/06/09	638.00
1981/06/10	646.20
1981/06/11	579.70
1981/06/12	522.80
1981/06/13	468.80
1981/06/14	458.00
1981/06/15	492.90
1981/06/16	481.70
1981/06/17	509.00
1981/06/18	434.40
1981/06/19	389.20
1981/06/20	363.40
1981/06/21	419.40
1981/06/22	402.20
1981/06/23	347.20
1981/06/24	291.40
1981/06/25	269.50
1981/06/26	273.00
1981/06/27	331.70
1981/06/28	341.40
1981/06/29	361.30
1981/06/30	345.30
1981/07/01	347.20
1981/07/02	316.10
1981/07/03	314.20
1981/07/04	339.50
1981/07/05	306.60
1981/07/06	215.30
1981/07/07	173.90
1981/07/08	167.10
1981/07/09	171.20
1981/07/10	228.50
1981/07/11	453.80
1981/07/12	506.70
1981/07/13	449.40
1981/07/14	460.20
1981/07/15	466.60
1981/07/16	412.90
1981/07/17	369.90
1981/07/18	389.20
1981/07/19	423.60
1981/07/20	412.90
1981/07/21	372.00
1981/07/22	306.60
1981/07/23	359.10
1981/07/24	587.60
1981/07/25	816.40
1981/07/26	899.70
1981/07/27	962.00
1981/07/28	986.00
1981/07/29	947.00
1981/07/30	929.00
1981/07/31	929.00
1981/08/01	980.00
1981/08/02	1058.60
1981/08/03	1049.30
1981/08/04	1127.20
1981/08/05	1146.10
1981/08/06	1178.00
1981/08/07	1158.70
1981/08/08	1171.50
1981/08/09	1207.20
1981/08/10	1200.70
1981/08/11	1268.50
1981/08/12	1282.50
1981/08/13	1282.50
1981/08/14	1244.00
1981/08/15	1237.00
1981/08/16	1217.00
1981/08/17	1251.00
1981/08/18	1247.50
1981/08/19	1213.70
1981/08/20	1207.20
1981/08/21	1181.20
1981/08/22	1181.20
1981/08/23	1181.20
1981/08/24	1184.50
1981/08/25	1184.50
1981/08/26	1165.00
1981/08/27	1130.40
1981/08/28	1114.60
1981/08/29	1049.30
1981/08/30	1040.00
1981/08/31	1022.00
1981/09/01	1028.00
1981/09/02	974.00
1981/09/03	974.00
1981/09/04	944.00
1981/09/05	1004.00
1981/09/06	1064.80
1981/09/07	1102.00
1981/09/08	1139.80
1981/09/09	1191.00
1981/09/10	1142.90
1981/09/11	1114.60
1981/09/12	1127.20
1981/09/13	1117.80
1981/09/14	1117.80
1981/09/15	1092.70
1981/09/16	1067.90
1981/09/17	1007.00
1981/09/18	932.00
1981/09/19	888.10
1981/09/20	888.10
1981/09/21	876.50
1981/09/22	867.80
1981/09/23	917.10
1981/09/24	935.00
1981/09/25	923.00
1981/09/26	929.00
1981/09/27	974.00
1981/09/28	962.00
1981/09/29	935.00
1981/09/30	839.20
1981/10/01	679.20
1981/10/02	540.00
1981/10/03	574.40
1981/10/04	582.40
1981/10/05	571.80
1981/10/06	532.00
1981/10/07	495.20
1981/10/08	376.30
1981/10/09	241.70
1981/10/10	228.50
1981/10/11	259.00
1981/10/12	299.00
1981/10/13	289.50
1981/10/14	320.00
1981/10/15	304.70
1981/10/16	250.20
1981/10/17	195.50
1981/10/18	201.50
1981/10/19	180.70
1981/10/20	204.50
1981/10/21	289.50
1981/10/22	325.80
1981/10/23	347.20
1981/10/24	393.60
1981/10/25	335.50
1981/10/26	300.90
1981/10/27	226.80
1981/10/28	185.00
1981/10/29	178.00
1981/10/30	168.50
1981/10/31	168.50
1981/11/01	152.30
1981/11/02	140.20
1981/11/03	156.40
1981/11/04	164.50
1981/11/05	160.40
1981/11/06	157.70
1981/11/07	167.10
1981/11/08	212.00
1981/11/09	333.60
1981/11/10	690.20
1981/11/11	986.00
1981/11/12	1067.90
1981/11/13	1043.10
1981/11/14	980.00
1981/11/15	885.20
1981/11/16	793.60
1981/11/17	739.80
1981/11/18	864.90
1981/11/19	896.80
1981/11/20	1040.00
1981/11/21	1237.00
1981/11/22	1356.00
1981/11/23	1384.00
1981/11/24	1391.00
1981/11/25	1398.00
1981/11/26	1370.00
1981/11/27	1366.50
1981/11/28	1345.50
1981/11/29	1286.00
1981/11/30	1237.00
1981/12/01	1233.50
1981/12/02	1191.00
1981/12/03	1181.20
1981/12/04	1136.70
1981/12/05	1080.30
1981/12/06	1028.00
1981/12/07	935.00
1981/12/08	847.70
1981/12/09	765.10
1981/12/10	660.00
1981/12/11	555.90
1981/12/12	569.10
1981/12/13	525.10
1981/12/14	475.20
1981/12/15	475.20
1981/12/16	518.20
1981/12/17	502.10
1981/12/18	347.20
1981/12/19	321.90
1981/12/20	453.80
1981/12/21	447.30
1981/12/22	432.20
1981/12/23	445.20
1981/12/24	425.80
1981/12/25	365.60
1981/12/26	363.40
1981/12/27	333.60
1981/12/28	302.80
1981/12/29	291.40
1981/12/30	216.90
1981/12/31	216.90
#===========================================
# Number of observations = 365 / 365
# Average = 466.52