Quarter Percent 1997-03-31 6.0282 1997-06-30 6.9709 1997-09-30 7.1888 1997-12-31 7.2275 1998-03-31 7.4277 1998-06-30 7.421 1998-09-30 7.4695 1998-12-31 5.274 1999-03-31 6.3772 1999-06-30 5.582 1999-09-30 5.565 1999-12-31 3.0423 2000-03-31 5.7179 2000-06-30 5.2592 2000-09-30 6.1806 2000-12-31 4.3589 2001-03-31 6.053 2001-06-30 4.7082 2001-09-30 5.1683 2001-12-31 4.9451 2002-03-31 3.2728 2002-06-30 3.3156 2002-09-30 3.3924 2002-12-31 4.824 2003-03-31 4.4736 2003-06-30 3.284 2003-09-30 3.8798 2003-12-31 3.2895 2004-03-31 3.6909 2004-06-30 4.7368 2004-09-30 4.6412 2004-12-31 4.8016 2005-03-31 4.8668 2005-06-30 4.8483 2005-09-30 4.3942 2005-12-31 4.7627 2006-03-31 4.7528 2006-06-30 4.7194 2006-09-30 4.8972 2006-12-31 5.201 2007-03-31 5.3123 2007-06-30 6.4568 2007-09-30 5.9288 2007-12-31 5.7799 2008-03-31 5.4267 2008-06-30 5.288 2008-09-30 5.0906 2008-12-31 1.5373 2009-03-31 0.5027 2009-06-30 0.3711 2009-09-30 0.4203 2009-12-31 0.4434 2010-03-31 0.4707 2010-06-30 0.5005 2010-09-30 0.5227 2010-12-31 0.5564 2011-03-31 0.5396 2011-06-30 0.7368 2011-09-30 0.6487 2011-12-31 0.4578 2012-03-31 0.4775 2012-06-30 0.4586 2012-09-30 0.3938 2012-12-31 0.4275 2013-03-31 0.4203 2013-06-30 0.3919 2013-09-30 0.411 2013-12-31 0.3057 2014-03-31 0.3342 2014-06-30 0.3807 2014-09-30 0.4027 2014-12-31 0.3565 2015-03-31 0.4217 2015-06-30 0.3947 2015-09-30 0.3518 2015-12-31 0.3475 2016-03-31 0.4128 2016-06-30 0.4416 2016-09-30 0.1624 2016-12-31 0.1618 2017-03-31 0.174 2017-06-30 0.194 2017-09-30 0.1991 2017-12-31 0.4123 2018-03-31 0.4435 2018-06-30 0.4399 2018-09-30 0.6964 2018-12-31 0.6998 2019-03-31 0.7036 2019-06-30 0.706 2019-09-30 0.7101 2019-12-31 0.7098 2020-03-31 0.0729 2020-06-30 0.0603 2020-09-30 0.0509 2020-12-31 0.0394 2021-03-31 0.0466 2021-06-30 0.0466 2021-09-30 0.0479 2021-12-31 0.1906 2022-03-31 0.6896 2022-06-30 1.1874 2022-09-30 2.1901 2022-12-31 3.4282 2023-03-31 4.1777 2023-06-30 4.9286 2023-09-30 5.1867 2023-12-31 5.1869