Quarterly US dollars
1999-03-31 1006
1999-06-30 1030
1999-09-30 1323
1999-12-31 1410
2000-03-31 1228
2000-06-30 1113
2000-09-30 1130
2000-12-31 1129
2001-03-31 1081
2001-06-30 1076
2001-09-30 1070
2001-12-31 1142
2002-03-31 1319
2002-06-30 1139
2002-09-30 1021
2002-12-31 819
2003-03-31 1536
2003-06-30 1975
2003-09-30 1406
2003-12-31 2043
2004-03-31 1882
2004-06-30 1285
2004-09-30 1117
2004-12-31 1468
2005-03-31 1666
2005-06-30 2101
2005-09-30 3395
2005-12-31 1984
2006-03-31 2516
2006-06-30 2438
2006-09-30 2146
2006-12-31 2098
2007-03-31 1938
2007-06-30 2828
2007-09-30 2625
2007-12-31 3566
2008-03-31 4282
2008-06-30 3885
2008-09-30 3606
2008-12-31 2386
2009-03-31 2177
2009-06-30 2287
2009-09-30 2739
2009-12-31 2381
2010-03-31 2612
2010-06-30 2598
2010-09-30 3864
2010-12-31 3289
2011-03-31 2725
2011-06-30 3236
2011-09-30 2827
2011-12-31 3490
2012-03-31 3050
2012-06-30 3079
2012-09-30 2376
2012-12-31 2252
2013-03-31 3065
2013-06-30 3132
2013-09-30 3337
2013-12-31 3289
2014-03-31 3416
2014-06-30 3771
2014-09-30 3803
2014-12-31 4816
2015-03-31 4477
2015-06-30 4500
2015-09-30 5765
2015-12-31 4844
2016-03-31 5832
2016-06-30 5682
2016-09-30 4939
2016-12-31 5922
2017-03-31 6278
2017-06-30 6617
2017-09-30 5740
2017-12-31 6467
2018-03-31 6814
2018-06-30 4209
2018-09-30 5254
2018-12-31 5690
2019-03-31 5085
2019-06-30 5901
2019-09-30 6610
2019-12-31 6617
2020-03-31 5322
2020-06-30 6537
2020-09-30 6638
2020-12-31 5157
2021-03-31 5045
2021-06-30 4888
2021-09-30 5228
2021-12-31 7554
2022-03-31 6652
2022-06-30 6931
2022-09-30 7678
2022-12-31 8375
2023-03-31 6856
2023-06-30 8361
2023-09-30 8127