1988/01/01	32.30
1988/01/02	34.40
1988/01/03	38.80
1988/01/04	40.00
1988/01/05	40.40
1988/01/06	42.80
1988/01/07	38.00
1988/01/08	34.80
1988/01/09	31.20
1988/01/10	30.80
1988/01/11	31.20
1988/01/12	29.10
1988/01/13	24.60
1988/01/14	27.00
1988/01/15	22.80
1988/01/16	23.20
1988/01/17	24.60
1988/01/18	26.30
1988/01/19	28.70
1988/01/20	20.30
1988/01/21	22.80
1988/01/22	22.40
1988/01/23	21.00
1988/01/24	18.90
1988/01/25	14.80
1988/01/26	21.70
1988/01/27	23.20
1988/01/28	28.00
1988/01/29	29.10
1988/01/30	19.60
1988/01/31	30.80
1988/02/01	17.90
1988/02/02	19.30
1988/02/03	16.80
1988/02/04	15.10
1988/02/05	21.70
1988/02/06	18.60
1988/02/07	20.30
1988/02/08	19.30
1988/02/09	22.40
1988/02/10	24.90
1988/02/11	30.50
1988/02/12	27.30
1988/02/13	42.00
1988/02/14	37.60
1988/02/15	24.90
1988/02/16	24.60
1988/02/17	23.50
1988/02/18	19.30
1988/02/19	24.20
1988/02/20	30.80
1988/02/21	23.90
1988/02/22	29.80
1988/02/23	33.70
1988/02/24	28.70
1988/02/25	39.60
1988/02/26	38.00
1988/02/27	34.40
1988/02/28	27.70
1988/02/29	23.20
1988/03/01	20.00
1988/03/02	18.90
1988/03/03	16.80
1988/03/04	26.30
1988/03/05	24.20
1988/03/06	23.50
1988/03/07	29.10
1988/03/08	33.30
1988/03/09	28.00
1988/03/10	33.00
1988/03/11	30.80
1988/03/12	32.60
1988/03/13	21.00
1988/03/14	22.40
1988/03/15	30.10
1988/03/16	20.00
1988/03/17	17.90
1988/03/18	21.40
1988/03/19	22.10
1988/03/20	26.30
1988/03/21	31.90
1988/03/22	31.90
1988/03/23	35.20
1988/03/24	38.80
1988/03/25	39.60
1988/03/26	35.60
1988/03/27	31.90
1988/03/28	28.40
1988/03/29	18.90
1988/03/30	11.90
1988/03/31	15.80
1988/04/01	19.50
1988/04/02	20.10
1988/04/03	24.60
1988/04/04	25.20
1988/04/05	27.90
1988/04/06	27.60
1988/04/07	28.80
1988/04/08	25.50
1988/04/09	32.60
1988/04/10	34.80
1988/04/11	37.40
1988/04/12	33.00
1988/04/13	26.70
1988/04/14	21.90
1988/04/15	25.20
1988/04/16	27.60
1988/04/17	29.70
1988/04/18	33.30
1988/04/19	32.60
1988/04/20	34.00
1988/04/21	32.60
1988/04/22	32.30
1988/04/23	30.30
1988/04/24	27.90
1988/04/25	28.50
1988/04/26	27.30
1988/04/27	24.30
1988/04/28	17.50
1988/04/29	23.70
1988/04/30	43.00
1988/05/01	24.30
1988/05/02	18.90
1988/05/03	19.80
1988/05/04	22.20
1988/05/05	29.10
1988/05/06	32.30
1988/05/07	30.70
1988/05/08	32.30
1988/05/09	30.00
1988/05/10	30.70
1988/05/11	26.40
1988/05/12	24.60
1988/05/13	34.80
1988/05/14	37.40
1988/05/15	52.60
1988/05/16	49.80
1988/05/17	58.00
1988/05/18	59.50
1988/05/19	72.50
1988/05/20	72.00
1988/05/21	64.00
1988/05/22	54.00
1988/05/23	51.80
1988/05/24	56.50
1988/05/25	62.50
1988/05/26	65.50
1988/05/27	80.50
1988/05/28	81.50
1988/05/29	84.00
1988/05/30	63.00
1988/05/31	69.50
1988/06/01	61.50
1988/06/02	44.60
1988/06/03	52.20
1988/06/04	48.20
1988/06/05	42.20
1988/06/06	45.80
1988/06/07	45.00
1988/06/08	52.20
1988/06/09	64.50
1988/06/10	90.40
1988/06/11	51.00
1988/06/12	65.50
1988/06/13	59.50
1988/06/14	67.50
1988/06/15	81.00
1988/06/16	74.00
1988/06/17	78.00
1988/06/18	72.00
1988/06/19	57.50
1988/06/20	57.00
1988/06/21	49.40
1988/06/22	45.00
1988/06/23	39.00
1988/06/24	33.30
1988/06/25	30.00
1988/06/26	28.20
1988/06/27	27.00
1988/06/28	24.00
1988/06/29	25.50
1988/06/30	24.30
1988/07/01	48.60
1988/07/02	48.20
1988/07/03	34.00
1988/07/04	33.00
1988/07/05	28.50
1988/07/06	24.60
1988/07/07	24.30
1988/07/08	34.00
1988/07/09	40.60
1988/07/10	35.20
1988/07/11	41.00
1988/07/12	43.40
1988/07/13	41.80
1988/07/14	43.00
1988/07/15	36.30
1988/07/16	32.30
1988/07/17	29.70
1988/07/18	29.10
1988/07/19	28.80
1988/07/20	29.70
1988/07/21	34.80
1988/07/22	39.80
1988/07/23	42.60
1988/07/24	46.60
1988/07/25	46.60
1988/07/26	48.60
1988/07/27	45.40
1988/07/28	50.20
1988/07/29	51.00
1988/07/30	48.60
1988/07/31	46.20
1988/08/01	46.20
1988/08/02	39.40
1988/08/03	33.00
1988/08/04	45.40
1988/08/05	48.20
1988/08/06	48.20
1988/08/07	45.80
1988/08/08	45.40
1988/08/09	56.00
1988/08/10	68.50
1988/08/11	102.40
1988/08/12	127.60
1988/08/13	123.40
1988/08/14	121.00
1988/08/15	97.60
1988/08/16	86.00
1988/08/17	83.00
1988/08/18	92.80
1988/08/19	76.00
1988/08/20	71.50
1988/08/21	67.00
1988/08/22	70.50
1988/08/23	79.00
1988/08/24	83.00
1988/08/25	77.50
1988/08/26	91.00
1988/08/27	89.20
1988/08/28	86.50
1988/08/29	72.00
1988/08/30	69.50
1988/08/31	69.00
1988/09/01	50.60
1988/09/02	57.00
1988/09/03	64.50
1988/09/04	75.50
1988/09/05	68.00
1988/09/06	74.00
1988/09/07	63.00
1988/09/08	58.50
1988/09/09	45.80
1988/09/10	42.60
1988/09/11	40.60
1988/09/12	41.00
1988/09/13	32.00
1988/09/14	31.70
1988/09/15	36.30
1988/09/16	34.40
1988/09/17	37.80
1988/09/18	45.00
1988/09/19	52.20
1988/09/20	171.20
1988/09/21	261.00
1988/09/22	262.00
1988/09/23	234.60
1988/09/24	190.40
1988/09/25	172.80
1988/09/26	169.60
1988/09/27	147.20
1988/09/28	133.30
1988/09/29	115.60
1988/09/30	120.40
1988/10/01	112.00
1988/10/02	103.60
1988/10/03	87.00
1988/10/04	66.00
1988/10/05	67.50
1988/10/06	58.50
1988/10/07	53.50
1988/10/08	46.20
1988/10/09	47.00
1988/10/10	42.20
1988/10/11	44.60
1988/10/12	42.20
1988/10/13	54.00
1988/10/14	61.00
1988/10/15	63.00
1988/10/16	78.00
1988/10/17	124.00
1988/10/18	180.80
1988/10/19	267.00
1988/10/20	409.40
1988/10/21	408.20
1988/10/22	428.60
1988/10/23	417.80
1988/10/24	405.80
1988/10/25	398.60
1988/10/26	408.20
1988/10/27	427.40
1988/10/28	535.40
1988/10/29	527.60
1988/10/30	469.40
1988/10/31	429.80
1988/11/01	378.20
1988/11/02	346.30
1988/11/03	305.60
1988/11/04	278.00
1988/11/05	245.40
1988/11/06	227.40
1988/11/07	217.50
1988/11/08	203.20
1988/11/09	190.40
1988/11/10	183.20
1988/11/11	175.20
1988/11/12	170.40
1988/11/13	159.10
1988/11/14	175.20
1988/11/15	121.60
1988/11/16	81.50
1988/11/17	75.50
1988/11/18	68.00
1988/11/19	46.60
1988/11/20	62.00
1988/11/21	63.00
1988/11/22	63.00
1988/11/23	65.50
1988/11/24	66.00
1988/11/25	51.40
1988/11/26	50.60
1988/11/27	53.00
1988/11/28	52.20
1988/11/29	59.00
1988/11/30	53.00
1988/12/01	69.00
1988/12/02	79.50
1988/12/03	80.50
1988/12/04	92.20
1988/12/05	83.50
1988/12/06	91.60
1988/12/07	101.20
1988/12/08	106.60
1988/12/09	121.00
1988/12/10	125.80
1988/12/11	113.20
1988/12/12	112.60
1988/12/13	99.40
1988/12/14	103.60
1988/12/15	103.60
1988/12/16	82.00
1988/12/17	73.50
1988/12/18	65.00
1988/12/19	60.50
1988/12/20	59.50
1988/12/21	60.50
1988/12/22	62.50
1988/12/23	68.00
1988/12/24	67.50
1988/12/25	66.00
1988/12/26	63.50
1988/12/27	63.50
1988/12/28	61.50
1988/12/29	52.20
1988/12/30	51.40
1988/12/31	44.20
#===========================================
# Number of observations = 366 / 366
# Average = 72.17