Quarterly US dollars
1999-03-31 13708
1999-06-30 9767
1999-09-30 10911
1999-12-31 11945
2000-03-31 10024
2000-06-30 9673
2000-09-30 14481
2000-12-31 17783
2001-03-31 21452
2001-06-30 20825
2001-09-30 17451
2001-12-31 12786
2002-03-31 9801
2002-06-30 9601
2002-09-30 11117
2002-12-31 14619
2003-03-31 19814
2003-06-30 10600
2003-09-30 12629
2003-12-31 14066
2004-03-31 20423
2004-06-30 21682
2004-09-30 33027
2004-12-31 19176
2005-03-31 15848
2005-06-30 21810
2005-09-30 23857
2005-12-31 28206
2006-03-31 28079
2006-06-30 25445
2006-09-30 33750
2006-12-31 34638
2007-03-31 29485
2007-06-30 23245
2007-09-30 36244
2007-12-31 69982
2008-03-31 80304
2008-06-30 63729
2008-09-30 83673
2008-12-31 85911
2009-03-31 65209
2009-06-30 59084
2009-09-30 62738
2009-12-31 70990
2010-03-31 61981
2010-06-30 55678
2010-09-30 48499
2010-12-31 56099
2011-03-31 59180
2011-06-30 69244
2011-09-30 75720
2011-12-31 81119
2012-03-31 96322
2012-06-30 105849
2012-09-30 84203
2012-12-31 84185
2013-03-31 81420
2013-06-30 71555
2013-09-30 79810
2013-12-31 92251
2014-03-31 89930
2014-06-30 82817
2014-09-30 84649
2014-12-31 77178
2015-03-31 70472
2015-06-30 79965
2015-09-30 90957
2015-12-31 88887
2016-03-31 78531
2016-06-30 77076
2016-09-30 66213
2016-12-31 67663
2017-03-31 78248
2017-06-30 82456
2017-09-30 76984
2017-12-31 74716
2018-03-31 75042
2018-06-30 73943
2018-09-30 69675
2018-12-31 62925
2019-03-31 64632
2019-06-30 79886
2019-09-30 69702
2019-12-31 69283
2020-03-31 62827
2020-06-30 55713
2020-09-30 52256
2020-12-31 43360
2021-03-31 50156
2021-06-30 42129
2021-09-30 46186
2021-12-31 37429
2022-03-31 41889
2022-06-30 53137
2022-09-30 47103
2022-12-31 30526
2023-03-31 37631
2023-06-30 57910
2023-09-30 46932