1987/01/01	12.90
1987/01/02	12.90
1987/01/03	12.60
1987/01/04	12.00
1987/01/05	11.70
1987/01/06	11.40
1987/01/07	11.10
1987/01/08	10.80
1987/01/09	10.20
1987/01/10	9.60
1987/01/11	9.60
1987/01/12	9.60
1987/01/13	9.00
1987/01/14	9.00
1987/01/15	9.00
1987/01/16	9.00
1987/01/17	8.80
1987/01/18	8.80
1987/01/19	8.60
1987/01/20	8.60
1987/01/21	8.60
1987/01/22	8.60
1987/01/23	8.60
1987/01/24	8.30
1987/01/25	8.30
1987/01/26	8.10
1987/01/27	8.10
1987/01/28	7.90
1987/01/29	7.90
1987/01/30	7.90
1987/01/31	7.70
1987/02/01	7.70
1987/02/02	7.70
1987/02/03	7.50
1987/02/04	7.50
1987/02/05	7.50
1987/02/06	7.50
1987/02/07	7.50
1987/02/08	7.50
1987/02/09	7.30
1987/02/10	7.30
1987/02/11	7.30
1987/02/12	7.10
1987/02/13	7.10
1987/02/14	6.90
1987/02/15	6.70
1987/02/16	6.50
1987/02/17	6.50
1987/02/18	6.50
1987/02/19	6.50
1987/02/20	6.50
1987/02/21	6.50
1987/02/22	6.50
1987/02/23	6.50
1987/02/24	6.50
1987/02/25	6.50
1987/02/26	6.50
1987/02/27	6.50
1987/02/28	6.50
1987/03/01	6.50
1987/03/02	6.50
1987/03/03	6.50
1987/03/04	6.50
1987/03/05	6.50
1987/03/06	6.50
1987/03/07	6.90
1987/03/08	6.90
1987/03/09	6.70
1987/03/10	6.70
1987/03/11	6.50
1987/03/12	6.50
1987/03/13	6.50
1987/03/14	6.50
1987/03/15	6.20
1987/03/16	6.20
1987/03/17	6.50
1987/03/18	6.50
1987/03/19	6.50
1987/03/20	6.20
1987/03/21	6.00
1987/03/22	5.80
1987/03/23	5.60
1987/03/24	5.60
1987/03/25	5.60
1987/03/26	5.60
1987/03/27	5.60
1987/03/28	5.80
1987/03/29	7.30
1987/03/30	7.30
1987/03/31	7.10
1987/04/01	3.20
1987/04/02	3.20
1987/04/03	3.00
1987/04/04	3.00
1987/04/05	3.00
1987/04/06	3.00
1987/04/07	2.80
1987/04/08	2.80
1987/04/09	2.80
1987/04/10	2.60
1987/04/11	2.60
1987/04/12	2.60
1987/04/13	2.60
1987/04/14	2.60
1987/04/15	2.60
1987/04/16	2.20
1987/04/17	2.40
1987/04/18	2.40
1987/04/19	2.40
1987/04/20	3.40
1987/04/21	2.80
1987/04/22	2.80
1987/04/23	3.00
1987/04/24	5.60
1987/04/25	4.40
1987/04/26	5.60
1987/04/27	6.00
1987/04/28	5.60
1987/04/29	4.00
1987/04/30	4.00
1987/05/01	5.60
1987/05/02	7.20
1987/05/03	5.60
1987/05/04	4.80
1987/05/05	5.60
1987/05/06	8.40
1987/05/07	6.40
1987/05/08	4.80
1987/05/09	4.40
1987/05/10	10.40
1987/05/11	12.00
1987/05/12	10.40
1987/05/13	10.40
1987/05/14	8.80
1987/05/15	10.00
1987/05/16	16.00
1987/05/17	10.00
1987/05/18	7.20
1987/05/19	6.00
1987/05/20	9.20
1987/05/21	8.40
1987/05/22	6.00
1987/05/23	6.40
1987/05/24	4.40
1987/05/25	4.40
1987/05/26	3.80
1987/05/27	3.40
1987/05/28	3.40
1987/05/29	3.20
1987/05/30	3.60
1987/05/31	7.60
1987/06/01	7.20
1987/06/02	12.00
1987/06/03	11.20
1987/06/04	12.80
1987/06/05	12.40
1987/06/06	16.40
1987/06/07	26.80
1987/06/08	25.20
1987/06/09	18.00
1987/06/10	14.00
1987/06/11	27.20
1987/06/12	35.20
1987/06/13	23.60
1987/06/14	16.80
1987/06/15	12.00
1987/06/16	13.20
1987/06/17	16.00
1987/06/18	12.40
1987/06/19	10.00
1987/06/20	12.40
1987/06/21	16.40
1987/06/22	19.20
1987/06/23	27.20
1987/06/24	22.40
1987/06/25	16.40
1987/06/26	14.40
1987/06/27	20.40
1987/06/28	14.00
1987/06/29	12.80
1987/06/30	14.40
1987/07/01	16.00
1987/07/02	17.20
1987/07/03	15.60
1987/07/04	42.10
1987/07/05	36.40
1987/07/06	18.00
1987/07/07	12.40
1987/07/08	12.80
1987/07/09	16.40
1987/07/10	24.80
1987/07/11	24.00
1987/07/12	20.00
1987/07/13	16.40
1987/07/14	28.60
1987/07/15	22.00
1987/07/16	13.20
1987/07/17	12.40
1987/07/18	9.20
1987/07/19	8.40
1987/07/20	8.40
1987/07/21	7.60
1987/07/22	7.20
1987/07/23	7.20
1987/07/24	6.40
1987/07/25	6.00
1987/07/26	5.20
1987/07/27	4.00
1987/07/28	3.80
1987/07/29	3.80
1987/07/30	4.40
1987/07/31	18.40
1987/08/01	35.80
1987/08/02	31.60
1987/08/03	27.60
1987/08/04	21.20
1987/08/05	14.40
1987/08/06	10.80
1987/08/07	9.20
1987/08/08	8.00
1987/08/09	7.20
1987/08/10	6.00
1987/08/11	4.80
1987/08/12	4.00
1987/08/13	4.40
1987/08/14	4.00
1987/08/15	4.40
1987/08/16	5.60
1987/08/17	8.40
1987/08/18	10.80
1987/08/19	18.40
1987/08/20	20.00
1987/08/21	14.80
1987/08/22	13.20
1987/08/23	12.40
1987/08/24	10.40
1987/08/25	28.00
1987/08/26	23.60
1987/08/27	16.40
1987/08/28	21.20
1987/08/29	31.00
1987/08/30	36.40
1987/08/31	40.00
1987/09/01	47.70
1987/09/02	52.60
1987/09/03	56.40
1987/09/04	58.80
1987/09/05	62.80
1987/09/06	73.60
1987/09/07	215.00
1987/09/08	317.90
1987/09/09	360.80
1987/09/10	399.20
1987/09/11	449.30
1987/09/12	466.20
1987/09/13	505.20
1987/09/14	514.30
1987/09/15	515.60
1987/09/16	518.20
1987/09/17	515.60
1987/09/18	562.40
1987/09/19	701.50
1987/09/20	714.50
1987/09/21	704.10
1987/09/22	736.60
1987/09/23	862.30
1987/09/24	958.00
1987/09/25	987.00
1987/09/26	995.70
1987/09/27	985.60
1987/09/28	950.80
1987/09/29	897.10
1987/09/30	844.90
1987/10/01	798.60
1987/10/02	766.50
1987/10/03	728.80
1987/10/04	687.20
1987/10/05	636.50
1987/10/06	593.60
1987/10/07	554.60
1987/10/08	516.90
1987/10/09	497.40
1987/10/10	531.20
1987/10/11	503.90
1987/10/12	492.20
1987/10/13	509.10
1987/10/14	496.10
1987/10/15	471.40
1987/10/16	433.70
1987/10/17	406.40
1987/10/18	380.00
1987/10/19	363.00
1987/10/20	353.10
1987/10/21	342.10
1987/10/22	332.20
1987/10/23	310.20
1987/10/24	300.30
1987/10/25	286.00
1987/10/26	275.00
1987/10/27	262.90
1987/10/28	247.50
1987/10/29	225.00
1987/10/30	200.00
1987/10/31	173.00
1987/11/01	162.00
1987/11/02	131.20
1987/11/03	113.20
1987/11/04	99.70
1987/11/05	80.80
1987/11/06	66.80
1987/11/07	54.80
1987/11/08	48.40
1987/11/09	44.20
1987/11/10	41.40
1987/11/11	40.00
1987/11/12	38.20
1987/11/13	38.20
1987/11/14	39.40
1987/11/15	43.50
1987/11/16	47.00
1987/11/17	65.20
1987/11/18	72.70
1987/11/19	70.00
1987/11/20	79.00
1987/11/21	70.90
1987/11/22	66.00
1987/11/23	65.20
1987/11/24	61.20
1987/11/25	59.60
1987/11/26	59.60
1987/11/27	57.20
1987/11/28	54.80
1987/11/29	51.90
1987/11/30	49.10
1987/12/01	45.60
1987/12/02	44.20
1987/12/03	41.40
1987/12/04	39.40
1987/12/05	37.00
1987/12/06	35.20
1987/12/07	34.00
1987/12/08	32.20
1987/12/09	31.00
1987/12/10	30.40
1987/12/11	29.80
1987/12/12	29.20
1987/12/13	27.60
1987/12/14	27.20
1987/12/15	26.80
1987/12/16	26.00
1987/12/17	24.80
1987/12/18	24.40
1987/12/19	23.60
1987/12/20	23.20
1987/12/21	22.80
1987/12/22	22.40
1987/12/23	22.00
1987/12/24	21.60
1987/12/25	21.60
1987/12/26	21.60
1987/12/27	20.80
1987/12/28	20.40
1987/12/29	20.00
1987/12/30	20.00
1987/12/31	19.60
#===========================================
# Number of observations = 365 / 365
# Average = 95.92