Quarterly US dollars
1999-09-30 31869
1999-12-31 32262
2000-03-31 36758
2000-06-30 36207
2000-09-30 36260
2000-12-31 39682
2001-03-31 38992
2001-06-30 39441
2001-09-30 38129
2001-12-31 35536
2002-03-31 30476
2002-06-30 26993
2002-09-30 25149
2002-12-31 42799
2003-03-31 39878
2003-06-30 39013
2003-09-30 39143
2003-12-31 39078
2004-03-31 38576
2004-06-30 37808
2004-09-30 40284
2004-12-31 42964
2005-03-31 46211
2005-06-30 51879
2005-09-30 52984
2005-12-31 53918
2006-03-31 57434
2006-06-30 61206
2006-09-30 62602
2006-12-31 74476
2007-03-31 75785
2007-06-30 81378
2007-09-30 86510
2007-12-31 93001
2008-03-31 102589
2008-06-30 111046
2008-09-30 107329
2008-12-31 89831
2009-03-31 88983
2009-06-30 97950
2009-09-30 104669
2009-12-31 104755
2010-03-31 115994
2010-06-30 117684
2010-09-30 136397
2010-12-31 141449
2011-03-31 149669
2011-06-30 172382
2011-09-30 152799
2011-12-31 151094
2012-03-31 161857
2012-06-30 148084
2012-09-30 148493
2012-12-31 145955
2013-03-31 141279
2013-06-30 126603
2013-09-30 140164
2013-12-31 130146
2014-03-31 132068
2014-06-30 133741
2014-09-30 132071
2014-12-31 129834
2015-03-31 122820
2015-06-30 113551
2015-09-30 97468
2015-12-31 93297
2016-03-31 99602
2016-06-30 97105
2016-09-30 57731
2016-12-31 52683
2017-03-31 55993
2017-06-30 55491
2017-09-30 58664
2017-12-31 57874
2018-03-31 62650
2018-06-30 57782
2018-09-30 61242
2018-12-31 64166
2019-03-31 67996
2019-06-30 68515
2019-09-30 68569
2019-12-31 66931
2020-03-31 56106
2020-06-30 54670
2020-09-30 51675
2020-12-31 59495
2021-03-31 56633
2021-06-30 59111
2021-09-30 57718
2021-12-31 72489
2022-03-31 70067
2022-06-30 57807
2022-09-30 76932
2022-12-31 79669
2023-03-31 84495
2023-06-30 87421
2023-09-30 71603