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	69.00
1980/04/02	70.00
1980/04/03	70.00
1980/04/04	69.00
1980/04/05	69.00
1980/04/06	69.00
1980/04/07	69.00
1980/04/08	70.00
1980/04/09	70.00
1980/04/10	68.00
1980/04/11	64.00
1980/04/12	64.00
1980/04/13	64.00
1980/04/14	64.00
1980/04/15	64.00
1980/04/16	64.00
1980/04/17	64.00
1980/04/18	63.00
1980/04/19	64.00
1980/04/20	67.00
1980/04/21	64.00
1980/04/22	67.00
1980/04/23	67.00
1980/04/24	67.00
1980/04/25	67.00
1980/04/26	67.00
1980/04/27	67.00
1980/04/28	67.00
1980/04/29	67.00
1980/04/30	67.00
1980/05/01	67.00
1980/05/02	67.00
1980/05/03	67.00
1980/05/04	67.00
1980/05/05	67.00
1980/05/06	67.00
1980/05/07	67.00
1980/05/08	67.00
1980/05/09	67.00
1980/05/10	67.00
1980/05/11	67.00
1980/05/12	67.00
1980/05/13	67.00
1980/05/14	67.00
1980/05/15	67.00
1980/05/16	63.00
1980/05/17	67.00
1980/05/18	68.00
1980/05/19	68.00
1980/05/20	67.00
1980/05/21	68.00
1980/05/22	73.00
1980/05/23	79.00
1980/05/24	191.50
1980/05/25	620.00
1980/05/26	657.50
1980/05/27	527.50
1980/05/28	384.00
1980/05/29	281.50
1980/05/30	229.00
1980/05/31	269.50
1980/06/01	318.00
1980/06/02	269.50
1980/06/03	218.50
1980/06/04	188.50
1980/06/05	185.50
1980/06/06	164.50
1980/06/07	148.00
1980/06/08	146.00
1980/06/09	145.00
1980/06/10	144.00
1980/06/11	153.00
1980/06/12	159.00
1980/06/13	184.00
1980/06/14	254.50
1980/06/15	262.00
1980/06/16	322.00
1980/06/17	437.50
1980/06/18	482.50
1980/06/19	495.00
1980/06/20	490.00
1980/06/21	547.50
1980/06/22	590.00
1980/06/23	701.00
1980/06/24	863.00
1980/06/25	932.00
1980/06/26	959.00
1980/06/27	959.00
1980/06/28	956.00
1980/06/29	911.00
1980/06/30	851.00
1980/07/01	797.00
1980/07/02	761.00
1980/07/03	662.50
1980/07/04	610.00
1980/07/05	475.00
1980/07/06	465.00
1980/07/07	412.00
1980/07/08	406.00
1980/07/09	322.00
1980/07/10	247.00
1980/07/11	194.50
1980/07/12	169.00
1980/07/13	160.00
1980/07/14	157.00
1980/07/15	152.00
1980/07/16	148.00
1980/07/17	140.00
1980/07/18	129.00
1980/07/19	117.00
1980/07/20	114.00
1980/07/21	119.00
1980/07/22	135.00
1980/07/23	147.00
1980/07/24	169.00
1980/07/25	239.50
1980/07/26	344.00
1980/07/27	428.00
1980/07/28	625.00
1980/07/29	782.00
1980/07/30	872.00
1980/07/31	1022.00
1980/08/01	980.00
1980/08/02	1031.00
1980/08/03	1113.50
1980/08/04	1120.50
1980/08/05	1138.00
1980/08/06	1082.00
1980/08/07	1064.50
1980/08/08	1004.00
1980/08/09	902.00
1980/08/10	824.00
1980/08/11	710.00
1980/08/12	600.00
1980/08/13	500.00
1980/08/14	428.00
1980/08/15	346.00
1980/08/16	290.50
1980/08/17	227.50
1980/08/18	266.50
1980/08/19	286.00
1980/08/20	336.00
1980/08/21	354.00
1980/08/22	326.00
1980/08/23	374.00
1980/08/24	400.00
1980/08/25	416.00
1980/08/26	490.00
1980/08/27	570.00
1980/08/28	647.50
1980/08/29	704.00
1980/08/30	695.00
1980/08/31	686.00
1980/09/01	640.00
1980/09/02	657.50
1980/09/03	704.00
1980/09/04	743.00
1980/09/05	764.00
1980/09/06	833.00
1980/09/07	881.00
1980/09/08	896.00
1980/09/09	980.00
1980/09/10	1096.00
1980/09/11	1183.50
1980/09/12	1278.00
1980/09/13	1332.00
1980/09/14	1348.00
1980/09/15	1348.00
1980/09/16	1384.00
1980/09/17	1348.00
1980/09/18	1348.00
1980/09/19	1344.00
1980/09/20	1396.00
1980/09/21	1472.00
1980/09/22	1564.00
1980/09/23	1700.00
1980/09/24	1740.00
1980/09/25	1820.00
1980/09/26	1848.00
1980/09/27	1868.00
1980/09/28	1908.00
1980/09/29	2014.00
1980/09/30	2140.00
1980/10/01	2245.00
1980/10/02	2370.00
1980/10/03	2535.00
1980/10/04	2783.00
1980/10/05	3025.00
1980/10/06	3297.50
1980/10/07	3588.00
1980/10/08	3750.00
1980/10/09	3786.00
1980/10/10	3795.00
1980/10/11	3786.00
1980/10/12	3795.00
1980/10/13	3795.00
1980/10/14	3777.00
1980/10/15	3750.00
1980/10/16	3723.00
1980/10/17	3687.00
1980/10/18	3620.00
1980/10/19	3540.00
1980/10/20	3440.00
1980/10/21	3350.00
1980/10/22	3245.00
1980/10/23	3194.00
1980/10/24	3134.00
1980/10/25	3030.50
1980/10/26	2898.50
1980/10/27	2739.00
1980/10/28	2630.00
1980/10/29	2550.00
1980/10/30	2530.00
1980/10/31	2450.00
1980/11/01	2190.00
1980/11/02	2045.50
1980/11/03	1956.00
1980/11/04	1812.00
1980/11/05	1540.00
1980/11/06	1376.00
1980/11/07	1285.00
1980/11/08	1201.00
1980/11/09	1127.50
1980/11/10	1085.50
1980/11/11	1075.00
1980/11/12	1025.00
1980/11/13	992.00
1980/11/14	923.00
1980/11/15	773.00
1980/11/16	734.00
1980/11/17	725.00
1980/11/18	637.50
1980/11/19	597.50
1980/11/20	492.50
1980/11/21	512.50
1980/11/22	510.00
1980/11/23	482.50
1980/11/24	497.50
1980/11/25	502.50
1980/11/26	447.50
1980/11/27	416.00
1980/11/28	374.00
1980/11/29	352.00
1980/11/30	424.00
1980/12/01	440.00
1980/12/02	378.00
1980/12/03	316.00
1980/12/04	324.00
1980/12/05	352.00
1980/12/06	342.00
1980/12/07	364.00
1980/12/08	392.00
1980/12/09	366.00
1980/12/10	380.00
1980/12/11	396.00
1980/12/12	412.00
1980/12/13	472.50
1980/12/14	452.50
1980/12/15	350.00
1980/12/16	302.50
1980/12/17	275.50
1980/12/18	277.00
1980/12/19	287.50
1980/12/20	372.00
1980/12/21	445.00
1980/12/22	406.00
1980/12/23	301.00
1980/12/24	235.00
1980/12/25	197.50
1980/12/26	170.50
1980/12/27	160.00
1980/12/28	153.00
1980/12/29	144.00
1980/12/30	135.00
1980/12/31	127.00
#===========================================
# Number of observations = 275 / 366
# Average = 832.16