Quarterly
1997-09-30 658
1997-12-31 563
1998-03-31 541
1998-06-30 407
1998-09-30 962
1998-12-31 1040
1999-03-31 1339
1999-06-30 1348
1999-09-30 2299
1999-12-31 2313
2000-03-31 3087
2000-06-30 3963
2000-09-30 2955
2000-12-31 3176
2001-03-31 3238
2001-06-30 2265
2001-09-30 2851
2001-12-31 3150
2002-03-31 3133
2002-06-30 2990
2002-09-30 3858
2002-12-31 4608
2003-03-31 4315
2003-06-30 5211
2003-09-30 4135
2003-12-31 5555
2004-03-31 4911
2004-06-30 6930
2004-09-30 7264
2004-12-31 6190
2005-03-31 6069
2005-06-30 5930
2005-09-30 5566
2005-12-31 5903
2006-03-31 4971
2006-06-30 6181
2006-09-30 6528
2006-12-31 6580
2007-03-31 7838
2007-06-30 8809
2007-09-30 6604
2007-12-31 4739
2008-03-31 3707
2008-06-30 3315
2008-09-30 42930
2008-12-31 35003
2009-03-31 17932
2009-06-30 4379
2009-09-30 1914
2009-12-31 1884
2010-03-31 2446
2010-06-30 2006
2010-09-30 1724
2010-12-31 2153
2011-03-31 2515
2011-06-30 2473
2011-09-30 2339
2011-12-31 2246
2012-03-31 2149
2012-06-30 1792
2012-09-30 1805
2012-12-31 1797
2013-03-31 1862
2013-06-30 1827
2013-09-30 1838
2013-12-31 1829
2014-03-31 2044
2014-06-30 2055
2014-09-30 1817
2014-12-31 1816
2015-03-31 2251
2015-06-30 2128
2015-09-30 2044
2015-12-31 2324
2016-03-31 2976
2016-06-30 2761
2016-09-30 2356
2016-12-31 4308
2017-03-31 4286
2017-06-30 3695
2017-09-30 5148
2017-12-31 4427
2018-03-31 2168
2018-06-30 2306
2018-09-30 3271
2018-12-31 2246
2019-03-31 2987
2019-06-30 2471
2019-09-30 2541
2019-12-31 2444
2020-03-31 2506
2020-06-30 3821
2020-09-30 3195
2020-12-31 2890
2021-03-31 3970
2021-06-30 3329
2021-09-30 3499
2021-12-31 3905
2022-03-31 5133
2022-06-30 3253
2022-09-30 4196
2022-12-31 3235
2023-03-31 6754
2023-06-30 5788
2023-09-30 5407
2023-12-31 4169