Quarterly US dollars
1999-03-31 2873
1999-06-30 2436
1999-09-30 2691
1999-12-31 2709
2000-03-31 3030
2000-06-30 2797
2000-09-30 2990
2000-12-31 3095
2001-03-31 2953
2001-06-30 3299
2001-09-30 3411
2001-12-31 3271
2002-03-31 3164
2002-06-30 2679
2002-09-30 3120
2002-12-31 2751
2003-03-31 2990
2003-06-30 2683
2003-09-30 2872
2003-12-31 3290
2004-03-31 3000
2004-06-30 2973
2004-09-30 3252
2004-12-31 4681
2005-03-31 4978
2005-06-30 4688
2005-09-30 4881
2005-12-31 5014
2006-03-31 4174
2006-06-30 4855
2006-09-30 6693
2006-12-31 6608
2007-03-31 6255
2007-06-30 6490
2007-09-30 6616
2007-12-31 6370
2008-03-31 6046
2008-06-30 7315
2008-09-30 7175
2008-12-31 5688
2009-03-31 4961
2009-06-30 5273
2009-09-30 4536
2009-12-31 5284
2010-03-31 4692
2010-06-30 5068
2010-09-30 7899
2010-12-31 9722
2011-03-31 10214
2011-06-30 10034
2011-09-30 8001
2011-12-31 6843
2012-03-31 8067
2012-06-30 6860
2012-09-30 5377
2012-12-31 6656
2013-03-31 7597
2013-06-30 5378
2013-09-30 8341
2013-12-31 7776
2014-03-31 7053
2014-06-30 7142
2014-09-30 7835
2014-12-31 8072
2015-03-31 8468
2015-06-30 9769
2015-09-30 12771
2015-12-31 12344
2016-03-31 11058
2016-06-30 10067
2016-09-30 9750
2016-12-31 9705
2017-03-31 9863
2017-06-30 9914
2017-09-30 8696
2017-12-31 8275
2018-03-31 7234
2018-06-30 8150
2018-09-30 6940
2018-12-31 5961
2019-03-31 6626
2019-06-30 7296
2019-09-30 7818
2019-12-31 6997
2020-03-31 8783
2020-06-30 7080
2020-09-30 7383
2020-12-31 8203
2021-03-31 8378
2021-06-30 9038
2021-09-30 9958
2021-12-31 10708
2022-03-31 10831
2022-06-30 10531
2022-09-30 11885
2022-12-31 11339
2023-03-31 11464
2023-06-30 11726
2023-09-30 11864