Month	Percent
1991-06-30	86.1
1991-07-31	100.5
1991-08-31	117.6
1991-09-30	159
1991-10-31	163.9
1991-11-30	174.1
1991-12-31	123.2
1992-01-31	101
1992-02-29	149.6
1992-03-31	171.6
1992-04-30	222.9
1992-05-31	159.9
1992-06-30	144.6
1992-07-31	160.9
1992-08-31	134.3
1992-09-30	126.8
1992-10-31	120.5
1992-11-30	122.9
1992-12-31	191.6
1993-01-31	162.3
1993-02-28	180.9
1993-03-31	191
1993-04-30	224.2
1993-05-31	227.4
1993-06-30	194.3
1993-07-31	178.9
1993-08-31	193.5
1993-09-30	186.7
1993-10-31	221.2
1993-11-30	202.9
1993-12-31	140.2
1994-01-31	135.5
1994-02-28	121.9
1994-03-31	106.5
1994-04-30	86.6
1994-05-31	95.8
1994-06-30	93.8
1994-07-31	79.8
1994-08-31	73.6
1994-09-30	74.3
1994-10-31	50.8
1994-11-30	49.9
1994-12-31	48.3
1995-01-31	51.2
1995-02-28	48.7
1995-03-31	41.9
1995-04-30	42.6
1995-05-31	36.9
1995-06-30	38.4
1995-07-31	38.4
1995-08-31	42.4
1995-09-30	40.5
1995-10-31	40
1995-11-30	37.1
1995-12-31	35.5
1996-01-31	33.2
1996-02-29	32
1996-03-31	31.7
1996-04-30	29.4
1996-05-31	32
1996-06-30	29.6
1996-07-31	33.5
1996-08-31	26.3
1996-09-30	29
1996-10-31	33.7
1996-11-30	35.3
1996-12-31	33.4
1997-01-31	35.4
1997-02-28	42.6
1997-03-31	51.4
1997-04-30	55
1997-05-31	65
1997-06-30	66.9
1997-07-31	70
1997-08-31	80.6
1997-09-30	79.7
1997-10-31	72.6
1997-11-30	70
1997-12-31	66.1
1998-01-31	62.9
1998-02-28	54.3
1998-03-31	54.8
1998-04-30	58.4
1998-05-31	49.3
1998-06-30	49
1998-07-31	44.6
1998-08-31	39.6
1998-09-30	36.7
1998-10-31	46.8
1998-11-30	55.5
1998-12-31	67.3
1999-01-31	66.1
1999-02-28	61.4
1999-03-31	52.4
1999-04-30	49.9
1999-05-31	47.6
1999-06-30	49.7
1999-07-31	53
1999-08-31	55.2
1999-09-30	59.4
1999-10-31	52
1999-11-30	44.5
1999-12-31	41.6
2000-01-31	39.9
2000-02-29	43.9
2000-03-31	46.9
2000-04-30	40.4
2000-05-31	39.7
2000-06-30	35.2
2000-07-31	30.3
2000-08-31	35.3
2000-09-30	35.4
2000-10-31	36.6
2000-11-30	39.6
2000-12-31	40.5
2001-01-31	42.9
2001-02-28	42.3
2001-03-31	36.7
2001-04-30	38.2
2001-05-31	41.5
2001-06-30	43.7
2001-07-31	44
2001-08-31	36
2001-09-30	33.1
2001-10-31	30.2
2001-11-30	27
2001-12-31	25.5
2002-01-31	25
2002-02-28	21.4
2002-03-31	22
2002-04-30	23.2
2002-05-31	22.7
2002-06-30	18.4
2002-07-31	18.5
2002-08-31	18.8
2002-09-30	17.2
2002-10-31	18.4
2002-11-30	18
2002-12-31	17.1
2003-01-31	15.9
2003-02-28	16.3
2003-03-31	17.6
2003-04-30	15.3
2003-05-31	13.5
2003-06-30	16.7
2003-07-31	17.4
2003-08-31	17.4
2003-09-30	18.6
2003-10-31	19.1
2003-11-30	20.2
2003-12-31	19.8
2004-01-31	20.2
2004-02-29	19.8
2004-03-31	20.8
2004-04-30	21.5
2004-05-31	20.9
2004-06-30	20.3
2004-07-31	19.5
2004-08-31	18.9