Quarterly US dollars
1999-03-31 32794
1999-06-30 29043
1999-09-30 28580
1999-12-31 34925
2000-03-31 35861
2000-06-30 35503
2000-09-30 30792
2000-12-31 46781
2001-03-31 42403
2001-06-30 31676
2001-09-30 24872
2001-12-31 36336
2002-03-31 28397
2002-06-30 28028
2002-09-30 27745
2002-12-31 29081
2003-03-31 47275
2003-06-30 47907
2003-09-30 40999
2003-12-31 47424
2004-03-31 75030
2004-06-30 61931
2004-09-30 68264
2004-12-31 86862
2005-03-31 75939
2005-06-30 79495
2005-09-30 57484
2005-12-31 69723
2006-03-31 87555
2006-06-30 79086
2006-09-30 62642
2006-12-31 57369
2007-03-31 75044
2007-06-30 66500
2007-09-30 78879
2007-12-31 117683
2008-03-31 132768
2008-06-30 115411
2008-09-30 81669
2008-12-31 79548
2009-03-31 49598
2009-06-30 56386
2009-09-30 49554
2009-12-31 47655
2010-03-31 36769
2010-06-30 60380
2010-09-30 62926
2010-12-31 60910
2011-03-31 41322
2011-06-30 35272
2011-09-30 45783
2011-12-31 51807
2012-03-31 56408
2012-06-30 63755
2012-09-30 40002
2012-12-31 55164
2013-03-31 39521
2013-06-30 43032
2013-09-30 50421
2013-12-31 41906
2014-03-31 54971
2014-06-30 56438
2014-09-30 61715
2014-12-31 85216
2015-03-31 87484
2015-06-30 66178
2015-09-30 65680
2015-12-31 62189
2016-03-31 66776
2016-06-30 63935
2016-09-30 96264
2016-12-31 89444
2017-03-31 59638
2017-06-30 45940
2017-09-30 107043
2017-12-31 92857
2018-03-31 52902
2018-06-30 43785
2018-09-30 21961
2018-12-31 33335
2019-03-31 30937
2019-06-30 31486
2019-09-30 29349
2019-12-31 43507
2020-03-31 23833
2020-06-30 20413
2020-09-30 14260
2020-12-31 16882
2021-03-31 18198
2021-06-30 17964
2021-09-30 11220
2021-12-31 12565
2022-03-31 13971
2022-06-30 21681
2022-09-30 17965
2022-12-31 2484
2023-03-31 5324
2023-06-30 1575
2023-09-30 1921