1980/01/01	-9999
1980/01/02	-9999
1980/01/03	-9999
1980/01/04	-9999
1980/01/05	-9999
1980/01/06	-9999
1980/01/07	-9999
1980/01/08	-9999
1980/01/09	-9999
1980/01/10	-9999
1980/01/11	-9999
1980/01/12	-9999
1980/01/13	-9999
1980/01/14	-9999
1980/01/15	-9999
1980/01/16	-9999
1980/01/17	-9999
1980/01/18	-9999
1980/01/19	-9999
1980/01/20	-9999
1980/01/21	-9999
1980/01/22	-9999
1980/01/23	-9999
1980/01/24	-9999
1980/01/25	-9999
1980/01/26	-9999
1980/01/27	-9999
1980/01/28	-9999
1980/01/29	-9999
1980/01/30	-9999
1980/01/31	-9999
1980/02/01	-9999
1980/02/02	-9999
1980/02/03	-9999
1980/02/04	-9999
1980/02/05	-9999
1980/02/06	-9999
1980/02/07	-9999
1980/02/08	-9999
1980/02/09	-9999
1980/02/10	-9999
1980/02/11	-9999
1980/02/12	-9999
1980/02/13	-9999
1980/02/14	-9999
1980/02/15	-9999
1980/02/16	-9999
1980/02/17	-9999
1980/02/18	-9999
1980/02/19	-9999
1980/02/20	-9999
1980/02/21	-9999
1980/02/22	-9999
1980/02/23	-9999
1980/02/24	-9999
1980/02/25	-9999
1980/02/26	-9999
1980/02/27	-9999
1980/02/28	-9999
1980/02/29	-9999
1980/03/01	-9999
1980/03/02	-9999
1980/03/03	-9999
1980/03/04	-9999
1980/03/05	-9999
1980/03/06	-9999
1980/03/07	-9999
1980/03/08	-9999
1980/03/09	-9999
1980/03/10	-9999
1980/03/11	-9999
1980/03/12	-9999
1980/03/13	-9999
1980/03/14	-9999
1980/03/15	-9999
1980/03/16	-9999
1980/03/17	-9999
1980/03/18	-9999
1980/03/19	-9999
1980/03/20	-9999
1980/03/21	-9999
1980/03/22	-9999
1980/03/23	-9999
1980/03/24	-9999
1980/03/25	-9999
1980/03/26	-9999
1980/03/27	-9999
1980/03/28	-9999
1980/03/29	-9999
1980/03/30	-9999
1980/03/31	-9999
1980/04/01	70.50
1980/04/02	55.50
1980/04/03	45.00
1980/04/04	39.80
1980/04/05	66.00
1980/04/06	55.50
1980/04/07	54.00
1980/04/08	69.00
1980/04/09	57.00
1980/04/10	46.50
1980/04/11	32.00
1980/04/12	39.80
1980/04/13	51.00
1980/04/14	48.00
1980/04/15	41.10
1980/04/16	23.60
1980/04/17	2.40
1980/04/18	0
1980/04/19	17.60
1980/04/20	48.00
1980/04/21	57.00
1980/04/22	38.50
1980/04/23	41.10
1980/04/24	24.80
1980/04/25	27.20
1980/04/26	35.90
1980/04/27	39.80
1980/04/28	33.30
1980/04/29	30.80
1980/04/30	45.00
1980/05/01	41.10
1980/05/02	34.60
1980/05/03	45.00
1980/05/04	51.00
1980/05/05	37.20
1980/05/06	24.80
1980/05/07	49.50
1980/05/08	64.50
1980/05/09	43.70
1980/05/10	61.50
1980/05/11	91.50
1980/05/12	106.50
1980/05/13	133.50
1980/05/14	106.50
1980/05/15	76.50
1980/05/16	29.60
1980/05/17	38.50
1980/05/18	111.00
1980/05/19	173.80
1980/05/20	146.20
1980/05/21	114.00
1980/05/22	91.50
1980/05/23	127.50
1980/05/24	464.00
1980/05/25	546.80
1980/05/26	498.00
1980/05/27	398.00
1980/05/28	344.00
1980/05/29	332.00
1980/05/30	322.40
1980/05/31	364.00
1980/06/01	368.00
1980/06/02	326.20
1980/06/03	279.40
1980/06/04	272.20
1980/06/05	250.60
1980/06/06	214.60
1980/06/07	225.40
1980/06/08	247.00
1980/06/09	254.20
1980/06/10	257.80
1980/06/11	274.00
1980/06/12	290.20
1980/06/13	320.50
1980/06/14	320.50
1980/06/15	326.20
1980/06/16	348.00
1980/06/17	392.00
1980/06/18	412.00
1980/06/19	382.00
1980/06/20	412.00
1980/06/21	446.00
1980/06/22	478.00
1980/06/23	574.10
1980/06/24	656.00
1980/06/25	677.00
1980/06/26	679.10
1980/06/27	689.60
1980/06/28	683.30
1980/06/29	668.60
1980/06/30	656.00
1980/07/01	662.30
1980/07/02	674.90
1980/07/03	662.30
1980/07/04	637.10
1980/07/05	607.70
1980/07/06	597.20
1980/07/07	582.50
1980/07/08	559.40
1980/07/09	526.00
1980/07/10	482.00
1980/07/11	460.00
1980/07/12	456.00
1980/07/13	442.00
1980/07/14	436.00
1980/07/15	410.00
1980/07/16	388.00
1980/07/17	364.00
1980/07/18	344.00
1980/07/19	326.20
1980/07/20	328.10
1980/07/21	340.00
1980/07/22	392.00
1980/07/23	486.00
1980/07/24	565.70
1980/07/25	626.60
1980/07/26	687.50
1980/07/27	760.80
1980/07/28	870.80
1980/07/29	930.20
1980/07/30	994.50
1980/07/31	1041.00
1980/08/01	1024.40
1980/08/02	1125.00
1980/08/03	1144.20
1980/08/04	1141.80
1980/08/05	1127.40
1980/08/06	1125.00
1980/08/07	1117.80
1980/08/08	1089.00
1980/08/09	1033.80
1980/08/10	965.40
1980/08/11	879.60
1980/08/12	802.60
1980/08/13	763.00
1980/08/14	721.20
1980/08/15	681.20
1980/08/16	641.30
1980/08/17	588.80
1980/08/18	561.50
1980/08/19	603.50
1980/08/20	584.60
1980/08/21	557.30
1980/08/22	551.00
1980/08/23	611.90
1980/08/24	653.90
1980/08/25	719.00
1980/08/26	789.40
1980/08/27	868.60
1980/08/28	956.60
1980/08/29	1003.70
1980/08/30	980.80
1980/08/31	967.60
1980/09/01	965.40
1980/09/02	969.80
1980/09/03	999.10
1980/09/04	1017.50
1980/09/05	1074.60
1980/09/06	1117.80
1980/09/07	1125.00
1980/09/08	1137.00
1980/09/09	1175.40
1980/09/10	1209.00
1980/09/11	1233.00
1980/09/12	1247.50
1980/09/13	1252.50
1980/09/14	1260.00
1980/09/15	1262.50
1980/09/16	1267.50
1980/09/17	1270.00
1980/09/18	1277.50
1980/09/19	1282.50
1980/09/20	1297.60
1980/09/21	1287.50
1980/09/22	1341.80
1980/09/23	1367.80
1980/09/24	1383.40
1980/09/25	1399.00
1980/09/26	1409.80
1980/09/27	1436.80
1980/09/28	1458.40
1980/09/29	1485.40
1980/09/30	1523.20
1980/10/01	1534.00
1980/10/02	1569.10
1980/10/03	1606.90
1980/10/04	1625.80
1980/10/05	1647.40
1980/10/06	1663.60
1980/10/07	1682.50
1980/10/08	1693.30
1980/10/09	1701.40
1980/10/10	1704.10
1980/10/11	1704.10
1980/10/12	1696.00
1980/10/13	1682.50
1980/10/14	1663.60
1980/10/15	1647.40
1980/10/16	1628.50
1980/10/17	1604.20
1980/10/18	1579.90
1980/10/19	1566.40
1980/10/20	1539.40
1980/10/21	1501.60
1980/10/22	1474.60
1980/10/23	1431.40
1980/10/24	1415.20
1980/10/25	1404.40
1980/10/26	1386.00
1980/10/27	1360.00
1980/10/28	1321.00
1980/10/29	1282.50
1980/10/30	1235.40
1980/10/31	1206.60
1980/11/01	1170.60
1980/11/02	1120.20
1980/11/03	1062.60
1980/11/04	1003.70
1980/11/05	969.80
1980/11/06	923.60
1980/11/07	804.80
1980/11/08	829.00
1980/11/09	826.80
1980/11/10	813.60
1980/11/11	780.60
1980/11/12	765.20
1980/11/13	760.80
1980/11/14	710.60
1980/11/15	685.40
1980/11/16	656.00
1980/11/17	614.00
1980/11/18	588.80
1980/11/19	593.00
1980/11/20	567.80
1980/11/21	559.40
1980/11/22	548.90
1980/11/23	588.80
1980/11/24	595.10
1980/11/25	559.40
1980/11/26	544.70
1980/11/27	486.00
1980/11/28	450.00
1980/11/29	482.00
1980/11/30	470.00
1980/12/01	416.00
1980/12/02	370.00
1980/12/03	352.00
1980/12/04	328.10
1980/12/05	301.50
1980/12/06	332.00
1980/12/07	340.00
1980/12/08	320.50
1980/12/09	328.10
1980/12/10	305.30
1980/12/11	309.10
1980/12/12	370.00
1980/12/13	384.00
1980/12/14	356.00
1980/12/15	238.00
1980/12/16	216.40
1980/12/17	220.00
1980/12/18	211.00
1980/12/19	218.20
1980/12/20	311.00
1980/12/21	318.60
1980/12/22	243.40
1980/12/23	162.20
1980/12/24	112.50
1980/12/25	84.00
1980/12/26	63.00
1980/12/27	66.00
1980/12/28	57.00
1980/12/29	45.00
1980/12/30	34.60
1980/12/31	35.90
#===========================================
# Number of observations = 275 / 366
# Average = 643.56