Quarterly Percent
1977-03-31 6.5
1977-06-30 4
1977-09-30 3
1977-12-31 3.5
1978-03-31 3
1978-06-30 6.75
1978-09-30 6.75
1978-12-31 10
1979-03-31 10.5
1979-06-30 11.5
1979-09-30 11.5
1979-12-31 15
1980-03-31 15
1980-06-30 15
1980-09-30 14
1980-12-31 11.75
1981-03-31 9
1981-06-30 9
1981-09-30 11.25
1981-12-31 12.38
1982-03-31 10.13
1982-06-30 9.5
1982-09-30 7.31
1982-12-31 6.81
1983-03-31 7.5
1983-06-30 6
1983-09-30 6
1983-12-31 5.5
1984-03-31 8.25
1984-06-30 8.25
1984-09-30 9.71
1984-12-31 9.03
1985-03-31 11.52
1985-06-30 12.16
1985-09-30 11.36
1985-12-31 11.07
1986-03-31 12.07
1986-06-30 9.5
1986-09-30 9.2
1986-12-31 10.59
1987-03-31 9.6
1987-06-30 8.77
1987-09-30 9.38
1987-12-31 8.91
1988-03-31 8.49
1988-06-30 7.82
1988-09-30 10.22
1988-12-31 11.65
1989-03-31 12
1989-06-30 12.03
1989-09-30 12.2
1989-12-31 12.58
1990-03-31 13.57
1990-06-30 13.84
1990-09-30 13.84
1990-12-31 12.96
1991-03-31 12.32
1991-06-30 10.77
1991-09-30 9.67
1991-12-31 9.77
1992-03-31 8.52
1992-06-30 8.99
1992-09-30 8.62
1992-12-31 6.5
1993-03-31 5.43
1993-06-30 5.18
1993-09-30 5.07
1993-12-31 4.74
1994-03-31 4.44
1994-06-30 4.37
1994-09-30 4.39
1994-12-31 4.62
1995-03-31 4.95
1995-06-30 5.19
1995-09-30 5.34
1995-12-31 5.07
1996-03-31 4.68
1996-06-30 4.42
1996-09-30 4.29
1996-12-31 4.23
1997-03-31 4.37
1997-06-30 4.62
1997-09-30 5.55
1997-12-31 5.87
1998-03-31 6.01
1998-06-30 6
1998-09-30 6.23
1998-12-31 5
1999-03-31 4.3
1999-06-30 3.9
1999-09-30 3.8
1999-12-31 4
2000-03-31 4.4
2000-06-30 4.5
2000-09-30 4.5
2000-12-31 4.4
2001-03-31 4.3
2001-06-30 3.9
2001-09-30 3.6
2001-12-31 2.9
2002-03-31 2.4
2002-06-30 2.4
2002-09-30 2.4
2002-12-31 2.3
2003-03-31 2.2
2003-06-30 2
2003-09-30 1.8
2003-12-31 1.9
2004-03-31 2.1
2004-06-30 2.3
2004-09-30 2.8
2004-12-31 3
2005-03-31 3
2005-06-30 3
2005-09-30 2.9
2005-12-31 2.7
2006-03-31 2.8
2006-06-30 2.7
2006-09-30 2.8
2006-12-31 3
2007-03-31 3.3
2007-06-30 3.4
2007-09-30 3.6
2007-12-31 3.6