Quarterly Percent
1976-01-01 11.78
1976-04-01 11.76
1976-07-01 11.74
1976-10-01 12.12
1977-01-01 11.99
1977-04-01 12.59
1977-07-01 13.57
1977-10-01 14.04
1978-01-01 14.62
1978-04-01 15.16
1978-07-01 15.38
1978-10-01 15.88
1979-01-01 15.98
1979-04-01 16.04
1979-07-01 16.51
1979-10-01 17.52
1980-01-01 19.20
1980-04-01 20.47
1980-07-01 21.51
1980-10-01 24.25
1981-01-01 26.59
1981-04-01 27.66
1981-07-01 30.45
1981-10-01 31.81
1982-01-01 33.67
1982-04-01 39.59
1982-07-01 47.88
1982-10-01 46.12
1983-01-01 56.16
1983-04-01 58.63
1983-07-01 57.78
1983-10-01 56.44
1984-01-01 53.11
1984-04-01 50.38
1984-07-01 50.60
1984-10-01 47.54
1985-01-01 49.36
1985-04-01 54.92
1985-07-01 60.98
1985-10-01 65.66
1986-01-01 71.79
1986-04-01 76.97
1986-07-01 87.72
1986-10-01 95.33
1987-01-01 96.25
1987-04-01 93.76
1987-07-01 91.02
1987-10-01 104.29
1988-01-01 117.16
1988-04-01 46.76
1988-07-01 39.90
1988-10-01 45.48
1989-01-01 47.30
1989-04-01 51.97
1989-07-01 35.24
1989-10-01 40.11
1990-01-01 47.15
1990-04-01 35.16
1990-07-01 31.11
1990-10-01 29.23
1991-01-01 24.29
1991-04-01 21.79
1991-07-01 21.72
1991-10-01 19.95
1992-01-01 16.60
1992-04-01 16.01
1992-07-01 20.16
1992-10-01 22.76
1993-01-01 21.31
1993-04-01 18.68
1993-07-01 16.18
1993-10-01 14.68
1994-01-01 11.53
1994-04-01 17.18
1994-07-01 16.73
1994-10-01 16.96
1995-01-01 56.82
1995-04-01 46.39
1995-07-01 34.61
1995-10-01 46.54
1996-01-01 39.12
1996-04-01 27.05
1996-07-01 24.92
1996-10-01 26.97
1997-01-01 21.10
1997-04-01 18.78
1997-07-01 17.18
1997-10-01 17.79
1998-01-01 17.37
1998-04-01 17.24
1998-07-01 27.54
1998-10-01 28.56
1999-01-01 22.84
1999-04-01 18.62
1999-07-01 17.94
1999-10-01 15.42
2000-01-01 13.67
2000-04-01 13.53
2000-07-01 13.29
2000-10-01 14.39
2001-01-01 14.08
2001-04-01 9.47
2001-07-01 7.52
2001-10-01 5.81
2002-01-01 5.82
2002-04-01 5.37
2002-07-01 5.17
2002-10-01 5.13
2003-01-01 6.38
2003-04-01 3.91
2003-07-01 3.34
2003-10-01 3.91
2004-01-01 4.19
2004-04-01 4.41
2004-07-01 5.03
2004-10-01 5.84
2005-01-01 6.39
2005-04-01 6.71
2005-07-01 6.71
2005-10-01 5.89
2006-01-01 5.50
2006-04-01 5.08
2006-07-01 4.89
2006-10-01 4.82
2007-01-01 4.92
2007-04-01 5.01
2007-07-01 5.08
2007-10-01 5.13
2008-01-01 5.41
2008-04-01 5.53
2008-07-01 5.99
2008-10-01 6.02
2009-01-01 5.37
2009-04-01 3.95
2009-07-01 3.46
2009-10-01 3.42
2010-01-01 3.40
2010-04-01 3.43
2010-07-01 3.47
2010-10-01 3.28
2011-01-01 3.34
2011-04-01 3.38
2011-07-01 3.33
2011-10-01 3.26
2012-01-01 3.26
2012-04-01 3.24
2012-07-01 3.26
2012-10-01 3.25
2013-01-01 3.18
2013-04-01 2.97
2013-07-01 2.83
2013-10-01 2.64
2014-01-01 2.54
2014-04-01 2.50
2014-07-01 2.28
2014-10-01 2.15
2015-01-01 2.21
2015-04-01 2.23
2015-07-01 2.16
2015-10-01 2.11
2016-01-01 2.40
2016-04-01 2.57
2016-07-01 2.82
2016-10-01 3.28
2017-01-01 3.93
2017-04-01 4.31
2017-07-01 4.51
2017-10-01 4.62
2018-01-01 5.01
2018-04-01 5.10
2018-07-01 5.46