Quarterly
2003-12-31 3.7443
2004-03-31 3.8622
2004-06-30 3.6954
2004-09-30 3.5138
2004-12-31 2.996
2005-03-31 3.1402
2005-06-30 3.3396
2005-09-30 3.2467
2005-12-31 3.2573
2006-03-31 3.2507
2006-06-30 3.1876
2006-09-30 3.1353
2006-12-31 2.9042
2007-03-31 2.8988
2007-06-30 2.786
2007-09-30 2.6496
2007-12-31 2.4596
2008-03-31 2.2189
2008-06-30 2.1266
2008-09-30 2.412
2008-12-31 2.963
2009-03-31 3.52
2009-06-30 3.1817
2009-09-30 2.8981
2009-12-31 2.8619
2010-03-31 2.8521
2010-06-30 3.3783
2010-09-30 2.9119
2010-12-31 2.9546
2011-03-31 2.8397
2011-06-30 2.7454
2011-09-30 3.2932
2011-12-31 3.4437
2012-03-31 3.1183
2012-06-30 3.3375
2012-09-30 3.2034
2012-12-31 3.1044
2013-03-31 3.2519
2013-06-30 3.331
2013-09-30 3.122
2013-12-31 3.0142
2014-03-31 3.021
2014-06-30 3.0365
2014-09-30 3.3062
2014-12-31 3.5216
2015-03-31 3.7901
2015-06-30 3.761
2015-09-30 3.7995
2015-12-31 3.9146
2016-03-31 3.722
2016-06-30 3.956
2016-09-30 3.8269
2016-12-31 4.1809
2017-03-31 3.9621
2017-06-30 3.7089
2017-09-30 3.6445
2017-12-31 3.4825
2018-03-31 3.4255
2018-06-30 3.7449
2018-09-30 3.6868
2018-12-31 3.7529
2019-03-31 3.8339
2019-06-30 3.7289
2019-09-30 4.0099
2019-12-31 3.7939
2020-03-31 4.1562
2020-06-30 3.9556
2020-09-30 3.8659
2020-12-31 3.7117
2021-03-31 3.9483
2021-06-30 3.8061
2021-09-30 3.9706
2021-12-31 4.0589
2022-03-31 4.1684
2022-06-30 4.4933
2022-09-30 4.9401
2022-12-31 4.388
2023-03-31 4.306
2023-06-30 4.0623
2023-09-30 4.3631
2023-12-31 3.9317