1988/01/01	18.00
1988/01/02	17.60
1988/01/03	16.80
1988/01/04	16.40
1988/01/05	16.00
1988/01/06	15.60
1988/01/07	15.60
1988/01/08	16.00
1988/01/09	15.60
1988/01/10	15.20
1988/01/11	14.40
1988/01/12	14.00
1988/01/13	13.20
1988/01/14	12.80
1988/01/15	12.80
1988/01/16	12.40
1988/01/17	12.00
1988/01/18	12.00
1988/01/19	12.00
1988/01/20	11.20
1988/01/21	11.20
1988/01/22	11.20
1988/01/23	10.80
1988/01/24	10.80
1988/01/25	10.40
1988/01/26	10.40
1988/01/27	10.00
1988/01/28	10.00
1988/01/29	10.80
1988/01/30	10.00
1988/01/31	10.00
1988/02/01	10.00
1988/02/02	9.60
1988/02/03	9.60
1988/02/04	9.60
1988/02/05	9.20
1988/02/06	9.60
1988/02/07	9.60
1988/02/08	9.20
1988/02/09	9.20
1988/02/10	8.80
1988/02/11	10.40
1988/02/12	10.00
1988/02/13	10.00
1988/02/14	10.40
1988/02/15	10.40
1988/02/16	10.40
1988/02/17	10.40
1988/02/18	11.20
1988/02/19	10.40
1988/02/20	9.60
1988/02/21	9.20
1988/02/22	8.80
1988/02/23	8.40
1988/02/24	8.00
1988/02/25	7.60
1988/02/26	7.20
1988/02/27	8.40
1988/02/28	9.60
1988/02/29	9.20
1988/03/01	7.60
1988/03/02	7.20
1988/03/03	6.40
1988/03/04	6.40
1988/03/05	6.40
1988/03/06	6.80
1988/03/07	9.20
1988/03/08	8.80
1988/03/09	8.80
1988/03/10	8.00
1988/03/11	6.80
1988/03/12	6.40
1988/03/13	6.40
1988/03/14	6.00
1988/03/15	5.20
1988/03/16	5.20
1988/03/17	5.20
1988/03/18	4.80
1988/03/19	4.80
1988/03/20	4.80
1988/03/21	4.80
1988/03/22	4.40
1988/03/23	4.40
1988/03/24	4.40
1988/03/25	4.00
1988/03/26	3.80
1988/03/27	3.80
1988/03/28	3.80
1988/03/29	3.80
1988/03/30	3.80
1988/03/31	3.60
1988/04/01	3.80
1988/04/02	3.80
1988/04/03	3.80
1988/04/04	3.80
1988/04/05	3.80
1988/04/06	2.50
1988/04/07	2.30
1988/04/08	2.30
1988/04/09	2.00
1988/04/10	2.00
1988/04/11	2.30
1988/04/12	3.00
1988/04/13	4.00
1988/04/14	4.90
1988/04/15	4.30
1988/04/16	4.00
1988/04/17	3.80
1988/04/18	7.70
1988/04/19	11.20
1988/04/20	16.40
1988/04/21	10.50
1988/04/22	4.90
1988/04/23	4.00
1988/04/24	4.00
1988/04/25	4.00
1988/04/26	3.80
1988/04/27	3.80
1988/04/28	3.80
1988/04/29	10.80
1988/04/30	12.60
1988/05/01	11.50
1988/05/02	15.00
1988/05/03	34.30
1988/05/04	33.10
1988/05/05	40.30
1988/05/06	41.50
1988/05/07	26.00
1988/05/08	29.00
1988/05/09	38.50
1988/05/10	36.70
1988/05/11	34.30
1988/05/12	74.30
1988/05/13	70.80
1988/05/14	99.00
1988/05/15	102.20
1988/05/16	82.20
1988/05/17	94.20
1988/05/18	103.80
1988/05/19	102.20
1988/05/20	107.80
1988/05/21	118.20
1988/05/22	118.20
1988/05/23	113.40
1988/05/24	116.60
1988/05/25	126.60
1988/05/26	141.00
1988/05/27	162.60
1988/05/28	165.30
1988/05/29	150.00
1988/05/30	132.90
1988/05/31	118.20
1988/06/01	106.20
1988/06/02	94.20
1988/06/03	82.20
1988/06/04	70.80
1988/06/05	64.50
1988/06/06	58.20
1988/06/07	74.30
1988/06/08	104.60
1988/06/09	112.60
1988/06/10	116.60
1988/06/11	113.40
1988/06/12	107.00
1988/06/13	106.20
1988/06/14	118.20
1988/06/15	130.20
1988/06/16	139.20
1988/06/17	139.20
1988/06/18	138.30
1988/06/19	125.70
1988/06/20	115.80
1988/06/21	106.20
1988/06/22	89.40
1988/06/23	71.50
1988/06/24	56.10
1988/06/25	50.80
1988/06/26	50.10
1988/06/27	50.80
1988/06/28	55.40
1988/06/29	55.40
1988/06/30	70.80
1988/07/01	48.80
1988/07/02	37.30
1988/07/03	30.70
1988/07/04	25.00
1988/07/05	27.00
1988/07/06	25.50
1988/07/07	23.50
1988/07/08	28.50
1988/07/09	25.00
1988/07/10	21.00
1988/07/11	20.00
1988/07/12	21.00
1988/07/13	22.00
1988/07/14	23.50
1988/07/15	21.50
1988/07/16	18.60
1988/07/17	18.60
1988/07/18	19.50
1988/07/19	21.00
1988/07/20	26.50
1988/07/21	21.00
1988/07/22	20.50
1988/07/23	24.00
1988/07/24	26.50
1988/07/25	29.00
1988/07/26	33.70
1988/07/27	42.10
1988/07/28	47.50
1988/07/29	54.00
1988/07/30	49.50
1988/07/31	40.90
1988/08/01	36.10
1988/08/02	34.90
1988/08/03	35.50
1988/08/04	37.90
1988/08/05	41.50
1988/08/06	45.70
1988/08/07	54.00
1988/08/08	50.10
1988/08/09	42.70
1988/08/10	50.80
1988/08/11	65.20
1988/08/12	63.80
1988/08/13	51.40
1988/08/14	52.70
1988/08/15	53.40
1988/08/16	64.50
1988/08/17	63.10
1988/08/18	62.40
1988/08/19	63.10
1988/08/20	64.50
1988/08/21	68.70
1988/08/22	71.50
1988/08/23	76.60
1988/08/24	88.60
1988/08/25	88.60
1988/08/26	87.00
1988/08/27	81.40
1988/08/28	71.50
1988/08/29	64.50
1988/08/30	63.80
1988/08/31	63.80
1988/09/01	65.90
1988/09/02	66.60
1988/09/03	67.30
1988/09/04	68.00
1988/09/05	67.30
1988/09/06	65.90
1988/09/07	69.40
1988/09/08	71.50
1988/09/09	75.80
1988/09/10	83.00
1988/09/11	90.20
1988/09/12	95.00
1988/09/13	97.40
1988/09/14	96.60
1988/09/15	98.20
1988/09/16	95.80
1988/09/17	88.60
1988/09/18	102.20
1988/09/19	112.60
1988/09/20	181.50
1988/09/21	174.30
1988/09/22	147.30
1988/09/23	127.50
1988/09/24	111.00
1988/09/25	95.00
1988/09/26	83.00
1988/09/27	83.00
1988/09/28	78.20
1988/09/29	76.60
1988/09/30	79.80
1988/10/01	80.60
1988/10/02	71.50
1988/10/03	60.30
1988/10/04	50.80
1988/10/05	43.90
1988/10/06	39.10
1988/10/07	42.10
1988/10/08	40.30
1988/10/09	37.30
1988/10/10	50.10
1988/10/11	37.30
1988/10/12	37.30
1988/10/13	44.50
1988/10/14	54.00
1988/10/15	72.20
1988/10/16	106.20
1988/10/17	148.20
1988/10/18	180.60
1988/10/19	267.00
1988/10/20	317.00
1988/10/21	306.00
1988/10/22	316.00
1988/10/23	317.00
1988/10/24	298.00
1988/10/25	284.00
1988/10/26	294.00
1988/10/27	356.70
1988/10/28	419.40
1988/10/29	357.80
1988/10/30	312.00
1988/10/31	285.00
1988/11/01	259.00
1988/11/02	239.00
1988/11/03	225.00
1988/11/04	217.40
1988/11/05	212.60
1988/11/06	208.80
1988/11/07	206.90
1988/11/08	204.10
1988/11/09	202.20
1988/11/10	196.50
1988/11/11	186.00
1988/11/12	167.10
1988/11/13	141.00
1988/11/14	113.40
1988/11/15	91.00
1988/11/16	74.30
1988/11/17	61.00
1988/11/18	53.40
1988/11/19	48.20
1988/11/20	45.10
1988/11/21	43.30
1988/11/22	41.50
1988/11/23	40.90
1988/11/24	40.30
1988/11/25	38.50
1988/11/26	37.30
1988/11/27	36.70
1988/11/28	35.50
1988/11/29	34.30
1988/11/30	33.70
1988/12/01	31.90
1988/12/02	30.70
1988/12/03	29.50
1988/12/04	29.50
1988/12/05	29.00
1988/12/06	28.50
1988/12/07	28.50
1988/12/08	27.50
1988/12/09	27.00
1988/12/10	26.50
1988/12/11	25.50
1988/12/12	25.00
1988/12/13	25.00
1988/12/14	24.50
1988/12/15	23.50
1988/12/16	22.50
1988/12/17	21.50
1988/12/18	21.50
1988/12/19	21.00
1988/12/20	20.00
1988/12/21	19.50
1988/12/22	19.10
1988/12/23	18.20
1988/12/24	17.30
1988/12/25	16.40
1988/12/26	15.90
1988/12/27	15.00
1988/12/28	15.50
1988/12/29	15.00
1988/12/30	14.70
1988/12/31	14.00
#===========================================
# Number of observations = 366 / 366
# Average = 58.88