Quarterly US dollars
1999-03-31 34463
1999-06-30 38525
1999-09-30 39660
1999-12-31 32380
2000-03-31 42486
2000-06-30 44712
2000-09-30 44899
2000-12-31 44100
2001-03-31 44087
2001-06-30 43493
2001-09-30 43589
2001-12-31 49876
2002-03-31 48842
2002-06-30 43144
2002-09-30 49799
2002-12-31 53836
2003-03-31 51286
2003-06-30 52754
2003-09-30 52093
2003-12-31 59354
2004-03-31 66372
2004-06-30 64432
2004-09-30 70673
2004-12-31 83042
2005-03-31 81445
2005-06-30 77903
2005-09-30 69377
2005-12-31 66058
2006-03-31 67111
2006-06-30 73641
2006-09-30 75137
2006-12-31 82846
2007-03-31 83717
2007-06-30 83652
2007-09-30 93588
2007-12-31 97131
2008-03-31 89795
2008-06-30 87588
2008-09-30 91803
2008-12-31 91613
2009-03-31 73975
2009-06-30 83055
2009-09-30 78638
2009-12-31 67614
2010-03-31 66181
2010-06-30 54238
2010-09-30 59192
2010-12-31 50193
2011-03-31 47174
2011-06-30 50390
2011-09-30 55141
2011-12-31 58153
2012-03-31 55215
2012-06-30 60886
2012-09-30 64013
2012-12-31 63617
2013-03-31 54208
2013-06-30 54631
2013-09-30 49670
2013-12-31 57835
2014-03-31 36686
2014-06-30 44672
2014-09-30 52802
2014-12-31 46502
2015-03-31 40869
2015-06-30 35025
2015-09-30 37442
2015-12-31 38331
2016-03-31 36479
2016-06-30 34560
2016-09-30 43517
2016-12-31 40550
2017-03-31 32547
2017-06-30 31488
2017-09-30 36842
2017-12-31 36708
2018-03-31 48213
2018-06-30 47178
2018-09-30 32084
2018-12-31 42978
2019-03-31 38588
2019-06-30 45924
2019-09-30 40947
2019-12-31 48323
2020-03-31 53584
2020-06-30 51390
2020-09-30 61506
2020-12-31 61424
2021-03-31 60487
2021-06-30 65580
2021-09-30 77492
2021-12-31 87253
2022-03-31 108381
2022-06-30 105083
2022-09-30 125884
2022-12-31 107243
2023-03-31 93969
2023-06-30 92004
2023-09-30 88068