Quarterly Net Percent
1970-01-01 54
1970-04-01 62
1970-07-01 68
1970-10-01 59
1971-01-01 41
1971-04-01 43
1971-07-01 33
1971-10-01 30
1972-01-01 42
1972-04-01 38
1972-07-01 59
1972-10-01 65
1973-01-01 76
1973-04-01 88
1973-07-01 84
1973-10-01 86
1974-01-01 86
1974-04-01 71
1974-07-01 64
1974-10-01 33
1975-01-01 36
1975-04-01 29
1975-07-01 40
1975-10-01 22
1976-01-01 41
1976-04-01 3
1976-07-01 -15
1976-10-01 -9
1977-01-01 -12
1977-04-01 6
1977-07-01 23
1977-10-01 48
1978-01-01 54
1978-04-01 40
1978-07-01 50
1978-10-01 58
1979-01-01 46
1979-04-01 77
1979-07-01 85
1979-10-01 82
1980-01-01 87
1980-04-01 75
1980-07-01 71
1980-10-01 76
1981-01-01 59
1981-04-01 43
1981-07-01 38
1981-10-01 17
1982-01-01 -15
1982-04-01 -34
1982-07-01 -45
1982-10-01 -40
1983-01-01 -10
1983-04-01 -1
1983-07-01 19
1983-10-01 28
1984-01-01 33
1984-04-01 2
1984-07-01 -17
1984-10-01 -37
1985-01-01 -38
1985-04-01 -46
1985-07-01 -37
1985-10-01 -16
1986-01-01 -2
1986-04-01 14
1986-07-01 15
1986-10-01 31
1987-01-01 34
1987-04-01 37
1987-07-01 37
1987-10-01 47
1988-01-01 63
1988-04-01 68
1988-07-01 41
1988-10-01 38
1989-01-01 31
1989-04-01 22
1989-07-01 15
1989-10-01 5
1990-01-01 6
1990-04-01 9
1990-07-01 -23
1990-10-01 -29
1991-01-01 -22
1991-04-01 -22
1991-07-01 -28
1991-10-01 -30
1992-01-01 -16
1992-04-01 -20
1992-07-01 -35
1992-10-01 -40
1993-01-01 -18
1993-04-01 -24
1993-07-01 -16
1993-10-01 12
1994-01-01 9
1994-04-01 25
1994-07-01 51
1994-10-01 57
1995-01-01 58
1995-04-01 42
1995-07-01 26
1995-10-01 26
1996-01-01 -7
1996-04-01 5
1996-07-01 -5
1996-10-01 9
1997-01-01 25
1997-04-01 5
1997-07-01 8
1997-10-01 8
1998-01-01 -27
1998-04-01 -40
1998-07-01 -39
1998-10-01 -42
1999-01-01 -48
1999-04-01 -30
1999-07-01 -2
1999-10-01 13
2000-01-01 15
2000-04-01 12
2000-07-01 23
2000-10-01 6
2001-01-01 4
2001-04-01 7
2001-07-01 6
2001-10-01 21
2002-01-01 37
2002-04-01 43
2002-07-01 50
2002-10-01 44
2003-01-01 12
2003-04-01 -14
2003-07-01 -15
2003-10-01 -16
2004-01-01 4
2004-04-01 12
2004-07-01 26
2004-10-01 41
2005-01-01 4
2005-04-01 18
2005-07-01 34
2005-10-01 33
2006-01-01 24
2006-04-01 30
2006-07-01 29
2006-10-01 54
2007-01-01 46
2007-04-01 41
2007-07-01 21
2007-10-01 33
2008-01-01 -20
2008-04-01 -16
2008-07-01 -30
2008-10-01 -41
2009-01-01 -45
2009-04-01 -69
2009-07-01 -51
2009-10-01 -26
2010-01-01 -14
2010-04-01 -5
2010-07-01 6
2010-10-01 5
2011-01-01 15
2011-04-01 14
2011-07-01 1
2011-10-01 18
2012-01-01 24
2012-04-01 11
2012-07-01 5
2012-10-01 20
2013-01-01 10
2013-04-01 7
2013-07-01 15
2013-10-01 8
2014-01-01 -1
2014-04-01 -45
2014-07-01 -9
2014-10-01 18
2015-01-01 -6
2015-04-01 1
2015-07-01 -16
2015-10-01 -8
2016-01-01 -11
2016-04-01 -18
2016-07-01 -27
2016-10-01 -15
2017-01-01 -16