1981/01/01	37.00
1981/01/02	117.00
1981/01/03	127.80
1981/01/04	78.10
1981/01/05	115.80
1981/01/06	215.00
1981/01/07	299.45
1981/01/08	268.10
1981/01/09	258.20
1981/01/10	246.65
1981/01/11	130.20
1981/01/12	182.95
1981/01/13	198.20
1981/01/14	164.05
1981/01/15	60.92
1981/01/16	90.30
1981/01/17	121.80
1981/01/18	65.05
1981/01/19	147.50
1981/01/20	205.20
1981/01/21	202.40
1981/01/22	240.50
1981/01/23	205.20
1981/01/24	192.60
1981/01/25	79.90
1981/01/26	162.70
1981/01/27	184.30
1981/01/28	253.25
1981/01/29	206.60
1981/01/30	234.50
1981/01/31	392.00
1981/02/01	264.80
1981/02/02	209.40
1981/02/03	201.00
1981/02/04	284.60
1981/02/05	189.80
1981/02/06	206.60
1981/02/07	182.95
1981/02/08	137.50
1981/02/09	253.25
1981/02/10	233.00
1981/02/11	240.50
1981/02/12	422.00
1981/02/13	398.00
1981/02/14	349.00
1981/02/15	64.23
1981/02/16	161.35
1981/02/17	233.00
1981/02/18	209.40
1981/02/19	188.40
1981/02/20	198.20
1981/02/21	129.00
1981/02/22	152.50
1981/02/23	297.80
1981/02/24	311.00
1981/02/25	345.20
1981/02/26	347.10
1981/02/27	233.00
1981/02/28	314.80
1981/03/01	177.55
1981/03/02	297.80
1981/03/03	254.90
1981/03/04	263.15
1981/03/05	292.85
1981/03/06	281.30
1981/03/07	271.40
1981/03/08	191.20
1981/03/09	281.30
1981/03/10	234.50
1981/03/11	268.10
1981/03/12	301.10
1981/03/13	276.35
1981/03/14	390.00
1981/03/15	228.50
1981/03/16	256.55
1981/03/17	322.40
1981/03/18	284.60
1981/03/19	301.10
1981/03/20	279.65
1981/03/21	316.70
1981/03/22	202.40
1981/03/23	292.85
1981/03/24	345.20
1981/03/25	311.00
1981/03/26	339.50
1981/03/27	314.80
1981/03/28	312.90
1981/03/29	206.60
1981/03/30	205.20
1981/03/31	196.80
1981/04/01	243.00
1981/04/02	271.50
1981/04/03	322.10
1981/04/04	315.30
1981/04/05	224.40
1981/04/06	230.90
1981/04/07	294.00
1981/04/08	340.80
1981/04/09	340.80
1981/04/10	360.00
1981/04/11	404.00
1981/04/12	238.70
1981/04/13	138.80
1981/04/14	188.00
1981/04/15	311.90
1981/04/16	268.50
1981/04/17	274.50
1981/04/18	322.10
1981/04/19	303.40
1981/04/20	311.90
1981/04/21	305.10
1981/04/22	332.30
1981/04/23	386.10
1981/04/24	345.90
1981/04/25	402.00
1981/04/26	313.60
1981/04/27	370.90
1981/04/28	380.40
1981/04/29	426.00
1981/04/30	303.40
1981/05/01	194.50
1981/05/02	274.50
1981/05/03	279.00
1981/05/04	351.00
1981/05/05	335.70
1981/05/06	390.00
1981/05/07	354.60
1981/05/08	297.00
1981/05/09	271.50
1981/05/10	170.50
1981/05/11	292.50
1981/05/12	295.50
1981/05/13	372.80
1981/05/14	340.80
1981/05/15	262.50
1981/05/16	178.40
1981/05/17	77.20
1981/05/18	173.80
1981/05/19	315.30
1981/05/20	280.50
1981/05/21	318.70
1981/05/22	347.60
1981/05/23	221.80
1981/05/24	94.10
1981/05/25	280.50
1981/05/26	295.50
1981/05/27	340.80
1981/05/28	408.00
1981/05/29	376.60
1981/05/30	289.50
1981/05/31	70.80
1981/06/01	259.50
1981/06/02	301.70
1981/06/03	318.70
1981/06/04	388.00
1981/06/05	360.00
1981/06/06	446.00
1981/06/07	224.40
1981/06/08	370.90
1981/06/09	372.80
1981/06/10	358.20
1981/06/11	345.90
1981/06/12	340.80
1981/06/13	450.20
1981/06/14	300.00
1981/06/15	288.00
1981/06/16	264.00
1981/06/17	418.00
1981/06/18	345.90
1981/06/19	280.50
1981/06/20	232.20
1981/06/21	155.10
1981/06/22	240.00
1981/06/23	227.00
1981/06/24	243.00
1981/06/25	246.00
1981/06/26	220.50
1981/06/27	232.20
1981/06/28	246.00
1981/06/29	271.50
1981/06/30	337.40
1981/07/01	150.70
1981/07/02	103.10
1981/07/03	243.00
1981/07/04	39.60
1981/07/05	20.45
1981/07/06	224.40
1981/07/07	651.60
1981/07/08	279.00
1981/07/09	185.60
1981/07/10	185.60
1981/07/11	93.20
1981/07/12	63.60
1981/07/13	193.20
1981/07/14	234.80
1981/07/15	204.90
1981/07/16	206.20
1981/07/17	95.00
1981/07/18	77.20
1981/07/19	232.20
1981/07/20	322.10
1981/07/21	444.00
1981/07/22	651.60
1981/07/23	589.40
1981/07/24	576.40
1981/07/25	138.80
1981/07/26	90.50
1981/07/27	229.60
1981/07/28	358.20
1981/07/29	374.70
1981/07/30	390.00
1981/07/31	465.60
1981/08/01	535.20
1981/08/02	472.20
1981/08/03	535.20
1981/08/04	616.30
1981/08/05	708.00
1981/08/06	735.00
1981/08/07	702.00
1981/08/08	676.80
1981/08/09	619.00
1981/08/10	629.80
1981/08/11	637.90
1981/08/12	643.30
1981/08/13	573.80
1981/08/14	651.60
1981/08/15	637.90
1981/08/16	629.80
1981/08/17	560.80
1981/08/18	320.40
1981/08/19	300.00
1981/08/20	325.50
1981/08/21	600.10
1981/08/22	584.20
1981/08/23	494.40
1981/08/24	438.00
1981/08/25	315.30
1981/08/26	332.30
1981/08/27	345.90
1981/08/28	325.50
1981/08/29	298.50
1981/08/30	70.80
1981/08/31	280.50
1981/09/01	306.80
1981/09/02	315.30
1981/09/03	330.60
1981/09/04	374.70
1981/09/05	345.90
1981/09/06	233.50
1981/09/07	320.40
1981/09/08	356.40
1981/09/09	369.00
1981/09/10	558.20
1981/09/11	452.40
1981/09/12	45.20
1981/09/13	31.50
1981/09/14	246.00
1981/09/15	194.50
1981/09/16	210.10
1981/09/17	120.20
1981/09/18	115.70
1981/09/19	32.80
1981/09/20	22.40
1981/09/21	170.50
1981/09/22	220.50
1981/09/23	202.30
1981/09/24	223.10
1981/09/25	268.50
1981/09/26	41.20
1981/09/27	25.00
1981/09/28	191.90
1981/09/29	279.00
1981/09/30	303.40
1981/10/01	322.10
1981/10/02	323.80
1981/10/03	66.00
1981/10/04	32.15
1981/10/05	211.40
1981/10/06	238.70
1981/10/07	224.40
1981/10/08	253.50
1981/10/09	236.10
1981/10/10	162.80
1981/10/11	40.40
1981/10/12	76.40
1981/10/13	78.80
1981/10/14	91.40
1981/10/15	131.45
1981/10/16	125.15
1981/10/17	167.20
1981/10/18	95.90
1981/10/19	188.00
1981/10/20	191.90
1981/10/21	279.00
1981/10/22	193.20
1981/10/23	109.40
1981/10/24	50.00
1981/10/25	30.85
1981/10/26	140.90
1981/10/27	240.00
1981/10/28	273.00
1981/10/29	244.50
1981/10/30	291.00
1981/10/31	256.50
1981/11/01	176.00
1981/11/02	256.50
1981/11/03	261.00
1981/11/04	317.00
1981/11/05	256.50
1981/11/06	270.00
1981/11/07	59.60
1981/11/08	25.65
1981/11/09	163.90
1981/11/10	141.95
1981/11/11	126.20
1981/11/12	171.60
1981/11/13	217.90
1981/11/14	188.00
1981/11/15	81.20
1981/11/16	221.80
1981/11/17	240.00
1981/11/18	210.10
1981/11/19	252.00
1981/11/20	285.00
1981/11/21	298.50
1981/11/22	94.10
1981/11/23	255.00
1981/11/24	295.50
1981/11/25	291.00
1981/11/26	288.00
1981/11/27	300.00
1981/11/28	234.80
1981/11/29	70.80
1981/11/30	204.90
1981/12/01	125.15
1981/12/02	115.70
1981/12/03	107.60
1981/12/04	119.30
1981/12/05	37.35
1981/12/06	40.40
1981/12/07	100.40
1981/12/08	114.80
1981/12/09	116.60
1981/12/10	97.70
1981/12/11	168.30
1981/12/12	228.30
1981/12/13	82.00
1981/12/14	167.20
1981/12/15	183.20
1981/12/16	183.20
1981/12/17	174.90
1981/12/18	207.50
1981/12/19	184.40
1981/12/20	67.60
1981/12/21	152.90
1981/12/22	118.40
1981/12/23	106.70
1981/12/24	123.05
1981/12/25	104.90
1981/12/26	93.20
1981/12/27	63.60
1981/12/28	144.10
1981/12/29	165.00
1981/12/30	177.20
1981/12/31	105.80
#===========================================
# Number of observations = 365 / 365
# Average = 257.15