1981/01/01	130.20
1981/01/02	186.30
1981/01/03	219.30
1981/01/04	176.40
1981/01/05	111.30
1981/01/06	86.40
1981/01/07	122.10
1981/01/08	99.60
1981/01/09	72.30
1981/01/10	105.90
1981/01/11	201.70
1981/01/12	238.00
1981/01/13	244.60
1981/01/14	229.20
1981/01/15	183.00
1981/01/16	155.00
1981/01/17	151.00
1981/01/18	160.00
1981/01/19	134.00
1981/01/20	105.90
1981/01/21	93.60
1981/01/22	90.40
1981/01/23	98.70
1981/01/24	175.30
1981/01/25	222.60
1981/01/26	173.10
1981/01/27	146.00
1981/01/28	155.00
1981/01/29	150.00
1981/01/30	117.60
1981/01/31	149.00
1981/02/01	187.40
1981/02/02	181.90
1981/02/03	228.10
1981/02/04	262.20
1981/02/05	224.80
1981/02/06	197.30
1981/02/07	192.90
1981/02/08	200.60
1981/02/09	175.30
1981/02/10	165.00
1981/02/11	165.00
1981/02/12	156.00
1981/02/13	174.20
1981/02/14	196.20
1981/02/15	230.30
1981/02/16	283.00
1981/02/17	298.60
1981/02/18	368.40
1981/02/19	167.00
1981/02/20	142.00
1981/02/21	160.00
1981/02/22	167.00
1981/02/23	167.00
1981/02/24	167.00
1981/02/25	155.00
1981/02/26	149.00
1981/02/27	202.80
1981/02/28	241.30
1981/03/01	258.90
1981/03/02	250.10
1981/03/03	231.40
1981/03/04	222.60
1981/03/05	203.90
1981/03/06	211.60
1981/03/07	211.60
1981/03/08	210.50
1981/03/09	213.80
1981/03/10	228.10
1981/03/11	220.40
1981/03/12	202.80
1981/03/13	221.50
1981/03/14	222.60
1981/03/15	230.30
1981/03/16	240.20
1981/03/17	258.90
1981/03/18	266.60
1981/03/19	231.40
1981/03/20	223.70
1981/03/21	238.00
1981/03/22	240.20
1981/03/23	238.00
1981/03/24	239.10
1981/03/25	234.70
1981/03/26	213.80
1981/03/27	233.60
1981/03/28	257.80
1981/03/29	261.10
1981/03/30	266.60
1981/03/31	263.30
1981/04/01	247.90
1981/04/02	220.40
1981/04/03	196.20
1981/04/04	197.30
1981/04/05	201.70
1981/04/06	235.80
1981/04/07	262.20
1981/04/08	253.40
1981/04/09	224.80
1981/04/10	214.90
1981/04/11	253.40
1981/04/12	277.00
1981/04/13	302.20
1981/04/14	314.20
1981/04/15	305.80
1981/04/16	253.40
1981/04/17	188.50
1981/04/18	205.00
1981/04/19	262.20
1981/04/20	267.70
1981/04/21	256.70
1981/04/22	261.10
1981/04/23	264.40
1981/04/24	274.60
1981/04/25	285.40
1981/04/26	287.80
1981/04/27	316.60
1981/04/28	338.50
1981/04/29	322.90
1981/04/30	296.20
1981/05/01	315.40
1981/05/02	347.60
1981/05/03	334.60
1981/05/04	286.60
1981/05/05	250.10
1981/05/06	268.80
1981/05/07	299.80
1981/05/08	333.30
1981/05/09	339.80
1981/05/10	356.70
1981/05/11	341.10
1981/05/12	322.90
1981/05/13	275.80
1981/05/14	242.40
1981/05/15	283.00
1981/05/16	298.60
1981/05/17	322.90
1981/05/18	302.20
1981/05/19	264.40
1981/05/20	238.00
1981/05/21	212.70
1981/05/22	244.60
1981/05/23	305.80
1981/05/24	347.60
1981/05/25	478.80
1981/05/26	602.20
1981/05/27	602.20
1981/05/28	557.50
1981/05/29	535.20
1981/05/30	542.60
1981/05/31	563.50
1981/06/01	566.40
1981/06/02	550.10
1981/06/03	490.50
1981/06/04	415.80
1981/06/05	452.20
1981/06/06	511.30
1981/06/07	548.60
1981/06/08	570.90
1981/06/09	572.40
1981/06/10	533.70
1981/06/11	497.90
1981/06/12	532.20
1981/06/13	533.70
1981/06/14	508.30
1981/06/15	503.90
1981/06/16	515.80
1981/06/17	514.30
1981/06/18	456.40
1981/06/19	427.00
1981/06/20	463.40
1981/06/21	478.80
1981/06/22	450.80
1981/06/23	425.60
1981/06/24	406.00
1981/06/25	369.70
1981/06/26	400.40
1981/06/27	424.20
1981/06/28	456.40
1981/06/29	462.00
1981/06/30	466.20
1981/07/01	459.20
1981/07/02	452.20
1981/07/03	452.20
1981/07/04	436.80
1981/07/05	359.30
1981/07/06	291.40
1981/07/07	313.00
1981/07/08	368.40
1981/07/09	424.20
1981/07/10	701.60
1981/07/11	729.30
1981/07/12	648.00
1981/07/13	588.80
1981/07/14	553.00
1981/07/15	476.00
1981/07/16	413.00
1981/07/17	457.80
1981/07/18	497.90
1981/07/19	489.00
1981/07/20	473.20
1981/07/21	413.00
1981/07/22	452.20
1981/07/23	648.00
1981/07/24	808.20
1981/07/25	951.60
1981/07/26	976.50
1981/07/27	951.60
1981/07/28	869.80
1981/07/29	758.00
1981/07/30	738.80
1981/07/31	834.60
1981/08/01	906.00
1981/08/02	942.00
1981/08/03	981.50
1981/08/04	1041.50
1981/08/05	1106.00
1981/08/06	1141.10
1981/08/07	1197.80
1981/08/08	1255.00
1981/08/09	1294.20
1981/08/10	1317.30
1981/08/11	1326.00
1981/08/12	1326.00
1981/08/13	1337.60
1981/08/14	1343.40
1981/08/15	1343.40
1981/08/16	1340.50
1981/08/17	1346.30
1981/08/18	1336.40
1981/08/19	1320.60
1981/08/20	1280.60
1981/08/21	1228.00
1981/08/22	1180.00
1981/08/23	1196.00
1981/08/24	1200.00
1981/08/25	1156.00
1981/08/26	1088.50
1981/08/27	993.50
1981/08/28	900.20
1981/08/29	810.00
1981/08/30	775.00
1981/08/31	750.80
1981/09/01	723.00
1981/09/02	661.40
1981/09/03	644.20
1981/09/04	703.70
1981/09/05	795.00
1981/09/06	844.30
1981/09/07	903.40
1981/09/08	958.70
1981/09/09	983.00
1981/09/10	965.50
1981/09/11	976.00
1981/09/12	965.50
1981/09/13	983.00
1981/09/14	919.40
1981/09/15	762.50
1981/09/16	647.00
1981/09/17	603.70
1981/09/18	601.10
1981/09/19	594.60
1981/09/20	563.40
1981/09/21	523.20
1981/09/22	499.20
1981/09/23	469.00
1981/09/24	454.70
1981/09/25	477.80
1981/09/26	522.00
1981/09/27	531.60
1981/09/28	542.60
1981/09/29	528.00
1981/09/30	466.80
1981/10/01	427.20
1981/10/02	463.50
1981/10/03	508.80
1981/10/04	523.20
1981/10/05	528.00
1981/10/06	511.20
1981/10/07	441.50
1981/10/08	409.60
1981/10/09	419.50
1981/10/10	470.10
1981/10/11	498.00
1981/10/12	505.20
1981/10/13	494.40
1981/10/14	469.00
1981/10/15	418.40
1981/10/16	376.60
1981/10/17	345.80
1981/10/18	337.00
1981/10/19	360.10
1981/10/20	394.20
1981/10/21	415.10
1981/10/22	416.20
1981/10/23	445.90
1981/10/24	455.80
1981/10/25	452.50
1981/10/26	418.40
1981/10/27	378.80
1981/10/28	335.90
1981/10/29	297.40
1981/10/30	329.30
1981/10/31	383.20
1981/11/01	403.00
1981/11/02	409.60
1981/11/03	416.20
1981/11/04	403.00
1981/11/05	394.20
1981/11/06	419.50
1981/11/07	445.90
1981/11/08	463.50
1981/11/09	466.80
1981/11/10	482.40
1981/11/11	449.20
1981/11/12	410.70
1981/11/13	406.30
1981/11/14	414.00
1981/11/15	389.80
1981/11/16	387.60
1981/11/17	408.50
1981/11/18	397.50
1981/11/19	388.70
1981/11/20	452.50
1981/11/21	496.80
1981/11/22	513.60
1981/11/23	535.20
1981/11/24	566.00
1981/11/25	555.60
1981/11/26	536.40
1981/11/27	562.10
1981/11/28	579.00
1981/11/29	572.50
1981/11/30	563.40
1981/12/01	550.40
1981/12/02	536.40
1981/12/03	501.60
1981/12/04	498.00
1981/12/05	471.20
1981/12/06	431.60
1981/12/07	398.60
1981/12/08	372.20
1981/12/09	330.40
1981/12/10	299.60
1981/12/11	333.30
1981/12/12	338.50
1981/12/13	319.00
1981/12/14	316.60
1981/12/15	350.20
1981/12/16	351.50
1981/12/17	325.50
1981/12/18	328.10
1981/12/19	314.20
1981/12/20	310.60
1981/12/21	315.40
1981/12/22	315.40
1981/12/23	303.40
1981/12/24	256.70
1981/12/25	245.70
1981/12/26	238.00
1981/12/27	221.50
1981/12/28	224.80
1981/12/29	205.00
1981/12/30	181.90
1981/12/31	173.10
#===========================================
# Number of observations = 365 / 365
# Average = 446.26