Quarter	Net Percent
1961-04-01	13
1961-07-01	-2
1961-10-01	-26
1962-01-01	-10
1962-04-01	3
1962-07-01	8
1962-10-01	16
1963-01-01	50
1963-04-01	44
1963-07-01	49
1963-10-01	26
1964-01-01	39
1964-04-01	34
1964-07-01	52
1964-10-01	24
1965-01-01	40
1965-04-01	35
1965-07-01	29
1965-10-01	-1
1966-01-01	22
1966-04-01	10
1966-07-01	19
1966-10-01	-7
1967-01-01	-25
1967-04-01	-35
1967-07-01	-15
1967-10-01	-33
1968-01-01	-8
1968-04-01	18
1968-07-01	46
1968-10-01	33
1969-01-01	40
1969-04-01	33
1969-07-01	46
1969-10-01	26
1970-01-01	32
1970-04-01	18
1970-07-01	25
1970-10-01	-6
1971-01-01	-1
1971-04-01	9
1971-07-01	22
1971-10-01	7
1972-01-01	21
1972-04-01	52
1972-07-01	57
1972-10-01	53
1973-01-01	52
1973-04-01	57
1973-07-01	36
1973-10-01	4
1974-01-01	25
1974-04-01	-10
1974-07-01	-21
1974-10-01	-53
1975-01-01	-27
1975-04-01	-12
1975-07-01	-15
1975-10-01	-19
1976-01-01	0
1976-04-01	-20
1976-07-01	5
1976-10-01	-18
1977-01-01	-20
1977-04-01	-23
1977-07-01	-36
1977-10-01	-44
1978-01-01	-11
1978-04-01	10
1978-07-01	26
1978-10-01	-7
1979-01-01	1
1979-04-01	-11
1979-07-01	-1
1979-10-01	-22
1980-01-01	-13
1980-04-01	-15
1980-07-01	-12
1980-10-01	-8
1981-01-01	15
1981-04-01	34
1981-07-01	37
1981-10-01	7
1982-01-01	-1
1982-04-01	-24
1982-07-01	-23
1982-10-01	-50
1983-01-01	-29
1983-04-01	-3
1983-07-01	38
1983-10-01	26
1984-01-01	27
1984-04-01	10
1984-07-01	-1
1984-10-01	7
1985-01-01	2
1985-04-01	-22
1985-07-01	-22
1985-10-01	-51
1986-01-01	-32
1986-04-01	5
1986-07-01	3
1986-10-01	2
1987-01-01	-6
1987-04-01	-7
1987-07-01	0
1987-10-01	-26
1988-01-01	-24
1988-04-01	-18
1988-07-01	-1
1988-10-01	5
1989-01-01	4
1989-04-01	15
1989-07-01	33
1989-10-01	8
1990-01-01	-2
1990-04-01	14
1990-07-01	-5
1990-10-01	-24
1991-01-01	-28
1991-04-01	-6
1991-07-01	-11
1991-10-01	6
1992-01-01	23
1992-04-01	33
1992-07-01	43
1992-10-01	40
1993-01-01	35
1993-04-01	36
1993-07-01	40
1993-10-01	46
1994-01-01	45
1994-04-01	36
1994-07-01	51
1994-10-01	33
1995-01-01	12
1995-04-01	13
1995-07-01	22
1995-10-01	14
1996-01-01	18
1996-04-01	6
1996-07-01	22
1996-10-01	16
1997-01-01	-1
1997-04-01	-1
1997-07-01	14
1997-10-01	9
1998-01-01	2
1998-04-01	-15
1998-07-01	2
1998-10-01	21
1999-01-01	31
1999-04-01	36
1999-07-01	42
1999-10-01	23
2000-01-01	23
2000-04-01	-12
2000-07-01	13
2000-10-01	29
2001-01-01	19
2001-04-01	16
2001-07-01	11
2001-10-01	12
2002-01-01	34
2002-04-01	21
2002-07-01	34
2002-10-01	24
2003-01-01	9
2003-04-01	13
2003-07-01	30
2003-10-01	22
2004-01-01	17
2004-04-01	17
2004-07-01	28
2004-10-01	18
2005-01-01	11
2005-04-01	9
2005-07-01	9
2005-10-01	-14
2006-01-01	4
2006-04-01	7
2006-07-01	10
2006-10-01	13
2007-01-01	20
2007-04-01	9
2007-07-01	19
2007-10-01	13
2008-01-01	-9
2008-04-01	-11
2008-07-01	-3
2008-10-01	-36
2009-01-01	-41
2009-04-01	-4
2009-07-01	21
2009-10-01	12
2010-01-01	20
2010-04-01	15
2010-07-01	12
2010-10-01	18
2011-01-01	4
2011-04-01	28
2011-07-01	20
2011-10-01	17
2012-01-01	22
2012-04-01	12
2012-07-01	20
2012-10-01	25
2013-01-01	35