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	177.00
1980/04/02	181.50
1980/04/03	155.20
1980/04/04	153.80
1980/04/05	165.00
1980/04/06	147.40
1980/04/07	143.80
1980/04/08	117.40
1980/04/09	128.20
1980/04/10	163.60
1980/04/11	147.40
1980/04/12	148.60
1980/04/13	113.90
1980/04/14	85.30
1980/04/15	89.70
1980/04/16	97.40
1980/04/17	116.20
1980/04/18	135.40
1980/04/19	137.80
1980/04/20	141.40
1980/04/21	130.60
1980/04/22	127.00
1980/04/23	141.40
1980/04/24	151.00
1980/04/25	153.80
1980/04/26	147.40
1980/04/27	128.20
1980/04/28	147.40
1980/04/29	158.00
1980/04/30	160.80
1980/05/01	177.00
1980/05/02	149.80
1980/05/03	131.80
1980/05/04	136.60
1980/05/05	140.20
1980/05/06	119.80
1980/05/07	177.00
1980/05/08	199.50
1980/05/09	214.50
1980/05/10	242.70
1980/05/11	187.50
1980/05/12	155.20
1980/05/13	99.60
1980/05/14	139.00
1980/05/15	239.40
1980/05/16	321.60
1980/05/17	229.80
1980/05/18	162.20
1980/05/19	99.60
1980/05/20	98.50
1980/05/21	94.10
1980/05/22	136.60
1980/05/23	113.90
1980/05/24	146.20
1980/05/25	135.40
1980/05/26	99.60
1980/05/27	133.00
1980/05/28	190.50
1980/05/29	184.50
1980/05/30	117.40
1980/05/31	89.70
1980/06/01	165.00
1980/06/02	135.40
1980/06/03	69.30
1980/06/04	159.40
1980/06/05	155.20
1980/06/06	168.00
1980/06/07	166.50
1980/06/08	190.50
1980/06/09	213.00
1980/06/10	199.50
1980/06/11	190.50
1980/06/12	189.00
1980/06/13	178.50
1980/06/14	158.00
1980/06/15	216.00
1980/06/16	131.80
1980/06/17	118.60
1980/06/18	149.80
1980/06/19	180.00
1980/06/20	147.40
1980/06/21	193.50
1980/06/22	216.00
1980/06/23	186.00
1980/06/24	145.00
1980/06/25	177.00
1980/06/26	156.60
1980/06/27	158.00
1980/06/28	160.80
1980/06/29	177.00
1980/06/30	141.40
1980/07/01	100.70
1980/07/02	106.20
1980/07/03	110.60
1980/07/04	115.00
1980/07/05	129.40
1980/07/06	119.80
1980/07/07	87.50
1980/07/08	75.00
1980/07/09	98.50
1980/07/10	129.40
1980/07/11	141.40
1980/07/12	119.80
1980/07/13	137.80
1980/07/14	87.50
1980/07/15	115.00
1980/07/16	121.00
1980/07/17	142.60
1980/07/18	140.20
1980/07/19	93.00
1980/07/20	84.20
1980/07/21	91.90
1980/07/22	228.20
1980/07/23	375.40
1980/07/24	411.50
1980/07/25	325.20
1980/07/26	381.10
1980/07/27	388.70
1980/07/28	405.80
1980/07/29	465.00
1980/07/30	717.40
1980/07/31	983.80
1980/08/01	798.80
1980/08/02	493.00
1980/08/03	350.70
1980/08/04	336.00
1980/08/05	239.40
1980/08/06	234.60
1980/08/07	226.60
1980/08/08	211.50
1980/08/09	211.50
1980/08/10	228.20
1980/08/11	328.80
1980/08/12	242.70
1980/08/13	237.80
1980/08/14	210.00
1980/08/15	219.00
1980/08/16	309.00
1980/08/17	302.20
1980/08/18	300.50
1980/08/19	275.00
1980/08/20	300.50
1980/08/21	365.90
1980/08/22	417.20
1980/08/23	409.60
1980/08/24	321.60
1980/08/25	377.30
1980/08/26	651.40
1980/08/27	523.10
1980/08/28	386.80
1980/08/29	392.50
1980/08/30	328.80
1980/08/31	356.40
1980/09/01	155.20
1980/09/02	400.10
1980/09/03	671.20
1980/09/04	594.50
1980/09/05	655.80
1980/09/06	571.40
1980/09/07	724.00
1980/09/08	1629.60
1980/09/09	1446.00
1980/09/10	943.00
1980/09/11	558.80
1980/09/12	529.40
1980/09/13	256.30
1980/09/14	318.00
1980/09/15	207.00
1980/09/16	316.20
1980/09/17	433.00
1980/09/18	737.20
1980/09/19	805.60
1980/09/20	619.70
1980/09/21	717.40
1980/09/22	471.00
1980/09/23	459.00
1980/09/24	346.90
1980/09/25	295.40
1980/09/26	328.80
1980/09/27	292.00
1980/09/28	236.20
1980/09/29	165.00
1980/09/30	264.80
1980/10/01	187.50
1980/10/02	214.50
1980/10/03	175.50
1980/10/04	281.80
1980/10/05	439.00
1980/10/06	207.00
1980/10/07	421.00
1980/10/08	280.10
1980/10/09	307.30
1980/10/10	283.50
1980/10/11	310.80
1980/10/12	225.00
1980/10/13	133.00
1980/10/14	292.00
1980/10/15	513.00
1980/10/16	210.00
1980/10/17	295.40
1980/10/18	293.70
1980/10/19	463.00
1980/10/20	211.50
1980/10/21	457.00
1980/10/22	398.20
1980/10/23	479.00
1980/10/24	115.00
1980/10/25	146.20
1980/10/26	117.40
1980/10/27	104.00
1980/10/28	146.20
1980/10/29	249.50
1980/10/30	130.60
1980/10/31	140.20
1980/11/01	162.20
1980/11/02	110.60
1980/11/03	89.70
1980/11/04	117.40
1980/11/05	133.00
1980/11/06	153.80
1980/11/07	159.40
1980/11/08	171.00
1980/11/09	275.00
1980/11/10	177.00
1980/11/11	118.60
1980/11/12	128.20
1980/11/13	116.20
1980/11/14	139.00
1980/11/15	193.50
1980/11/16	236.20
1980/11/17	237.80
1980/11/18	180.00
1980/11/19	225.00
1980/11/20	352.60
1980/11/21	293.70
1980/11/22	278.40
1980/11/23	268.20
1980/11/24	134.20
1980/11/25	146.20
1980/11/26	217.50
1980/11/27	169.50
1980/11/28	181.50
1980/11/29	195.00
1980/11/30	325.20
1980/12/01	112.80
1980/12/02	141.40
1980/12/03	196.50
1980/12/04	193.50
1980/12/05	180.00
1980/12/06	153.80
1980/12/07	130.60
1980/12/08	193.50
1980/12/09	254.60
1980/12/10	305.60
1980/12/11	177.00
1980/12/12	117.40
1980/12/13	136.60
1980/12/14	177.00
1980/12/15	151.00
1980/12/16	152.40
1980/12/17	276.70
1980/12/18	314.40
1980/12/19	231.40
1980/12/20	166.50
1980/12/21	152.40
1980/12/22	175.50
1980/12/23	193.50
1980/12/24	184.50
1980/12/25	210.00
1980/12/26	247.80
1980/12/27	288.60
1980/12/28	325.20
1980/12/29	345.00
1980/12/30	307.30
1980/12/31	193.50
#===========================================
# Number of observations = 275 / 366
# Average = 247.67