1981/01/01	41.10
1981/01/02	33.90
1981/01/03	93.00
1981/01/04	56.40
1981/01/05	59.10
1981/01/06	67.00
1981/01/07	113.40
1981/01/08	181.80
1981/01/09	157.00
1981/01/10	167.50
1981/01/11	135.00
1981/01/12	74.40
1981/01/13	124.20
1981/01/14	109.80
1981/01/15	57.30
1981/01/16	131.40
1981/01/17	53.70
1981/01/18	69.00
1981/01/19	47.40
1981/01/20	129.00
1981/01/21	108.60
1981/01/22	125.40
1981/01/23	111.00
1981/01/24	125.40
1981/01/25	91.80
1981/01/26	55.50
1981/01/27	109.80
1981/01/28	151.40
1981/01/29	136.20
1981/01/30	135.00
1981/01/31	330.80
1981/02/01	180.20
1981/02/02	166.00
1981/02/03	123.00
1981/02/04	64.00
1981/02/05	157.00
1981/02/06	105.00
1981/02/07	132.60
1981/02/08	126.60
1981/02/09	141.00
1981/02/10	158.50
1981/02/11	132.60
1981/02/12	291.20
1981/02/13	280.60
1981/02/14	302.00
1981/02/15	129.00
1981/02/16	59.10
1981/02/17	152.70
1981/02/18	135.00
1981/02/19	133.80
1981/02/20	261.90
1981/02/21	112.20
1981/02/22	125.40
1981/02/23	157.00
1981/02/24	221.80
1981/02/25	169.00
1981/02/26	180.20
1981/02/27	85.80
1981/02/28	221.80
1981/03/01	155.50
1981/03/02	209.00
1981/03/03	191.40
1981/03/04	170.60
1981/03/05	236.40
1981/03/06	189.80
1981/03/07	215.40
1981/03/08	173.80
1981/03/09	158.50
1981/03/10	154.00
1981/03/11	175.40
1981/03/12	218.60
1981/03/13	204.20
1981/03/14	334.40
1981/03/15	238.10
1981/03/16	166.00
1981/03/17	243.20
1981/03/18	231.40
1981/03/19	213.80
1981/03/20	212.20
1981/03/21	246.60
1981/03/22	231.40
1981/03/23	210.60
1981/03/24	268.70
1981/03/25	272.10
1981/03/26	265.30
1981/03/27	268.70
1981/03/28	265.30
1981/03/29	223.40
1981/03/30	173.80
1981/03/31	172.20
1981/04/01	170.60
1981/04/02	212.20
1981/04/03	241.50
1981/04/04	270.40
1981/04/05	213.80
1981/04/06	197.80
1981/04/07	250.00
1981/04/08	300.20
1981/04/09	273.80
1981/04/10	291.20
1981/04/11	316.40
1981/04/12	250.00
1981/04/13	207.40
1981/04/14	88.20
1981/04/15	231.40
1981/04/16	213.80
1981/04/17	272.10
1981/04/18	275.50
1981/04/19	270.40
1981/04/20	263.60
1981/04/21	282.30
1981/04/22	312.80
1981/04/23	289.40
1981/04/24	347.00
1981/04/25	364.00
1981/04/26	341.60
1981/04/27	318.20
1981/04/28	318.20
1981/04/29	386.00
1981/04/30	256.80
1981/05/01	217.00
1981/05/02	250.00
1981/05/03	303.80
1981/05/04	243.20
1981/05/05	424.00
1981/05/06	338.00
1981/05/07	347.00
1981/05/08	263.60
1981/05/09	273.80
1981/05/10	207.40
1981/05/11	202.60
1981/05/12	263.60
1981/05/13	305.60
1981/05/14	350.60
1981/05/15	229.80
1981/05/16	197.80
1981/05/17	150.10
1981/05/18	101.40
1981/05/19	105.00
1981/05/20	185.00
1981/05/21	287.60
1981/05/22	218.60
1981/05/23	323.60
1981/05/24	278.90
1981/05/25	178.60
1981/05/26	275.50
1981/05/27	318.20
1981/05/28	370.00
1981/05/29	358.00
1981/05/30	277.20
1981/05/31	197.80
1981/06/01	118.20
1981/06/02	289.40
1981/06/03	275.50
1981/06/04	354.20
1981/06/05	314.60
1981/06/06	428.00
1981/06/07	314.60
1981/06/08	284.00
1981/06/09	354.20
1981/06/10	339.80
1981/06/11	318.20
1981/06/12	287.60
1981/06/13	456.00
1981/06/14	325.40
1981/06/15	268.70
1981/06/16	246.60
1981/06/17	414.00
1981/06/18	334.40
1981/06/19	330.80
1981/06/20	332.60
1981/06/21	185.00
1981/06/22	229.80
1981/06/23	196.20
1981/06/24	213.80
1981/06/25	210.60
1981/06/26	256.80
1981/06/27	238.10
1981/06/28	251.70
1981/06/29	253.40
1981/06/30	263.60
1981/07/01	199.40
1981/07/02	93.00
1981/07/03	143.60
1981/07/04	191.40
1981/07/05	19.70
1981/07/06	45.60
1981/07/07	640.00
1981/07/08	450.00
1981/07/09	194.60
1981/07/10	194.60
1981/07/11	166.00
1981/07/12	103.80
1981/07/13	94.20
1981/07/14	218.60
1981/07/15	307.40
1981/07/16	250.00
1981/07/17	221.80
1981/07/18	118.20
1981/07/19	202.60
1981/07/20	321.80
1981/07/21	343.40
1981/07/22	699.80
1981/07/23	679.00
1981/07/24	640.00
1981/07/25	336.20
1981/07/26	169.00
1981/07/27	164.50
1981/07/28	341.60
1981/07/29	416.00
1981/07/30	432.00
1981/07/31	462.00
1981/08/01	618.40
1981/08/02	592.00
1981/08/03	532.00
1981/08/04	637.60
1981/08/05	725.80
1981/08/06	836.00
1981/08/07	777.60
1981/08/08	941.20
1981/08/09	663.40
1981/08/10	628.00
1981/08/11	842.00
1981/08/12	720.60
1981/08/13	565.60
1981/08/14	686.80
1981/08/15	679.00
1981/08/16	642.60
1981/08/17	568.00
1981/08/18	392.00
1981/08/19	388.00
1981/08/20	384.00
1981/08/21	611.20
1981/08/22	616.00
1981/08/23	628.00
1981/08/24	580.00
1981/08/25	358.00
1981/08/26	370.00
1981/08/27	374.00
1981/08/28	400.00
1981/08/29	396.00
1981/08/30	400.00
1981/08/31	277.20
1981/09/01	255.10
1981/09/02	285.80
1981/09/03	291.20
1981/09/04	356.00
1981/09/05	291.20
1981/09/06	307.40
1981/09/07	289.40
1981/09/08	311.00
1981/09/09	341.60
1981/09/10	556.00
1981/09/11	466.00
1981/09/12	243.20
1981/09/13	238.10
1981/09/14	277.20
1981/09/15	196.20
1981/09/16	212.20
1981/09/17	201.00
1981/09/18	185.00
1981/09/19	157.00
1981/09/20	37.50
1981/09/21	150.10
1981/09/22	234.70
1981/09/23	253.40
1981/09/24	261.90
1981/09/25	275.50
1981/09/26	223.40
1981/09/27	26.00
1981/09/28	23.20
1981/09/29	289.40
1981/09/30	303.80
1981/10/01	273.80
1981/10/02	282.30
1981/10/03	325.40
1981/10/04	39.30
1981/10/05	51.00
1981/10/06	251.70
1981/10/07	253.40
1981/10/08	253.40
1981/10/09	251.70
1981/10/10	246.60
1981/10/11	167.50
1981/10/12	43.80
1981/10/13	64.00
1981/10/14	64.00
1981/10/15	75.50
1981/10/16	117.00
1981/10/17	183.40
1981/10/18	201.00
1981/10/19	204.20
1981/10/20	194.60
1981/10/21	218.60
1981/10/22	251.70
1981/10/23	233.00
1981/10/24	188.20
1981/10/25	33.00
1981/10/26	26.70
1981/10/27	229.80
1981/10/28	285.80
1981/10/29	278.90
1981/10/30	265.30
1981/10/31	282.30
1981/11/01	239.80
1981/11/02	228.20
1981/11/03	248.30
1981/11/04	291.20
1981/11/05	265.30
1981/11/06	273.80
1981/11/07	265.30
1981/11/08	51.00
1981/11/09	28.10
1981/11/10	236.40
1981/11/11	106.20
1981/11/12	138.60
1981/11/13	150.10
1981/11/14	163.00
1981/11/15	137.40
1981/11/16	90.60
1981/11/17	221.80
1981/11/18	183.40
1981/11/19	180.20
1981/11/20	243.20
1981/11/21	248.30
1981/11/22	260.20
1981/11/23	124.20
1981/11/24	298.40
1981/11/25	236.40
1981/11/26	241.50
1981/11/27	231.40
1981/11/28	233.00
1981/11/29	178.60
1981/11/30	113.40
1981/12/01	282.30
1981/12/02	150.10
1981/12/03	109.80
1981/12/04	105.00
1981/12/05	155.50
1981/12/06	28.10
1981/12/07	38.40
1981/12/08	101.40
1981/12/09	88.20
1981/12/10	44.70
1981/12/11	74.40
1981/12/12	186.60
1981/12/13	129.00
1981/12/14	89.40
1981/12/15	147.50
1981/12/16	183.40
1981/12/17	194.60
1981/12/18	137.40
1981/12/19	160.00
1981/12/20	150.10
1981/12/21	89.40
1981/12/22	138.60
1981/12/23	103.80
1981/12/24	94.20
1981/12/25	91.80
1981/12/26	105.00
1981/12/27	59.10
1981/12/28	76.60
1981/12/29	101.40
1981/12/30	183.40
1981/12/31	102.60
#===========================================
# Number of observations = 365 / 365
# Average = 243.86