Quarterly US dollars
1999-03-31 2071
1999-06-30 2352
1999-09-30 2419
1999-12-31 2777
2000-03-31 2613
2000-06-30 2876
2000-09-30 3222
2000-12-31 5601
2001-03-31 5625
2001-06-30 5180
2001-09-30 5730
2001-12-31 5517
2002-03-31 5282
2002-06-30 5911
2002-09-30 7106
2002-12-31 7123
2003-03-31 6528
2003-06-30 7899
2003-09-30 8422
2003-12-31 9405
2004-03-31 10244
2004-06-30 11968
2004-09-30 9384
2004-12-31 12571
2005-03-31 11783
2005-06-30 12614
2005-09-30 10749
2005-12-31 9754
2006-03-31 10096
2006-06-30 11252
2006-09-30 11818
2006-12-31 13279
2007-03-31 14249
2007-06-30 16517
2007-09-30 17717
2007-12-31 16170
2008-03-31 12875
2008-06-30 14094
2008-09-30 11179
2008-12-31 9235
2009-03-31 9073
2009-06-30 10971
2009-09-30 10141
2009-12-31 9754
2010-03-31 8953
2010-06-30 8860
2010-09-30 10377
2010-12-31 10522
2011-03-31 10732
2011-06-30 11827
2011-09-30 11683
2011-12-31 11965
2012-03-31 12676
2012-06-30 12760
2012-09-30 13005
2012-12-31 12677
2013-03-31 12472
2013-06-30 11524
2013-09-30 10783
2013-12-31 7808
2014-03-31 7767
2014-06-30 7625
2014-09-30 6735
2014-12-31 6395
2015-03-31 5350
2015-06-30 6772
2015-09-30 5884
2015-12-31 5370
2016-03-31 5111
2016-06-30 5084
2016-09-30 5144
2016-12-31 4461
2017-03-31 4413
2017-06-30 4170
2017-09-30 4313
2017-12-31 4731
2018-03-31 4403
2018-06-30 4460
2018-09-30 4737
2018-12-31 4281
2019-03-31 4885
2019-06-30 4351
2019-09-30 4264
2019-12-31 4221
2020-03-31 5223
2020-06-30 4681
2020-09-30 4497
2020-12-31 5315
2021-03-31 4975
2021-06-30 5129
2021-09-30 5415
2021-12-31 4804
2022-03-31 4552
2022-06-30 4461
2022-09-30 4228
2022-12-31 3607
2023-03-31 3726
2023-06-30 4011
2023-09-30 3532