Quarter Percent 1979-03-31 9.77 1979-06-30 9.24 1979-09-30 10.69 1979-12-31 12.48 1980-03-31 15.59 1980-06-30 7.98 1980-09-30 11.71 1980-12-31 14.81 1981-03-31 13.19 1981-06-30 14.63 1981-09-30 15.26 1981-12-31 12.27 1982-03-31 14.86 1982-06-30 14.05 1982-09-30 8.08 1982-12-31 8.52 1983-03-31 9.27 1983-06-30 9.52 1983-09-30 9.43 1983-12-31 9.66 1984-03-31 10.1 1984-06-30 10.23 1984-09-30 10.6 1984-12-31 8 1985-03-31 8.39 1985-06-30 7.12 1985-09-30 7.16 1985-12-31 7.11 1986-03-31 6.59 1986-06-30 6.14 1986-09-30 5.44 1986-12-31 5.85 1987-03-31 5.8 1987-06-30 5.83 1987-09-30 6.88 1987-12-31 5.91 1988-03-31 5.82 1988-06-30 6.77 1988-09-30 7.49 1988-12-31 8.38 1989-03-31 9.25 1989-06-30 8.24 1989-09-30 8.14 1989-12-31 7.92 1990-03-31 8.09 1990-06-30 7.99 1990-09-30 7.43 1990-12-31 6.62 1991-03-31 5.84 1991-06-30 5.54 1991-09-30 5.13 1991-12-31 3.86 1992-03-31 3.98 1992-06-30 3.56 1992-09-30 2.73 1992-12-31 3.06 1993-03-31 2.9 1993-06-30 3.03 1993-09-30 2.92 1993-12-31 2.98 1994-03-31 3.47 1994-06-30 4.14 1994-09-30 4.57 1994-12-31 5.46 1995-03-31 5.858 1995-06-30 5.638 1995-09-30 5.419 1995-12-31 4.961 1996-03-31 5.166 1996-06-30 5.18 1996-09-30 5.02 1996-12-31 5.15 1997-03-31 5.32 1997-06-30 5.12 1997-09-30 5 1997-12-31 5.36 1998-03-31 5.2 1998-06-30 4.99 1998-09-30 4.38 1998-12-31 4.53 1999-03-31 4.47 1999-06-30 4.83 1999-09-30 4.82 1999-12-31 5.38 2000-03-31 5.87 2000-06-30 5.82 2000-09-30 6.05 2000-12-31 5.73 2001-03-31 4.2 2001-06-30 3.57 2001-09-30 2.35 2001-12-31 1.71 2002-03-31 1.76 2002-06-30 1.67 2002-09-30 1.54 2002-12-31 1.2 2003-03-31 1.12 2003-06-30 0.89 2003-09-30 0.94 2003-12-31 0.93 2004-03-31 0.93 2004-06-30 1.31 2004-09-30 1.68 2004-12-31 2.18 2005-03-31 2.73 2005-06-30 3.06 2005-09-30 3.47 2005-12-31 3.92 2006-03-31 4.52 2006-06-30 4.88 2006-09-30 4.77 2006-12-31 4.89 2007-03-31 4.91 2007-06-30 4.68 2007-09-30 3.62 2007-12-31 3.29 2008-03-31 1.36 2008-06-30 1.87 2008-09-30 0.9 2008-12-31 0.11 2009-03-31 0.13 2009-06-30 0.2 2009-09-30 0.14 2009-12-31 0.06 2010-03-31 0.16 2010-06-30 0.18 2010-09-30 0.16 2010-12-31 0.15 2011-03-31 0.09 2011-06-30 0.03 2011-09-30 0.02 2011-12-31 0.02 2012-03-31 0.07 2012-06-30 0.09 2012-09-30 0.1 2012-12-31 0.05 2013-03-31 0.07 2013-06-30 0.04 2013-09-30 0.02 2013-12-31 0.07 2014-03-31 0.05 2014-06-30 0.03 2014-09-30 0.02 2014-12-31 0.04 2015-03-31 0.03 2015-06-30 0.01 2015-09-30 -0.01 2015-12-31 0.16 2016-03-31 0.21 2016-06-30 0.26 2016-09-30 0.28 2016-12-31 0.5 2017-03-31 0.75 2017-06-30 1.01 2017-09-30 1.04 2017-12-31 1.37 2018-03-31 1.7 2018-06-30 1.89 2018-09-30 2.15 2018-12-31 2.35 2019-03-31 2.38 2019-06-30 2.09 2019-09-30 1.76 2019-12-31 1.54 2020-03-31 0.11 2020-06-30 0.14 2020-09-30 0.09 2020-12-31 0.08 2021-03-31 0.02 2021-06-30 0.04 2021-09-30 0.04 2021-12-31 0.06 2022-03-31 0.55 2022-06-30 1.73 2022-09-30 3.26 2022-12-31 4.34 2023-03-31 4.8 2023-06-30 5.2 2023-09-30 5.32 2023-12-31 5.25