Quarterly US dollars
1999-03-31 582
1999-06-30 757
1999-09-30 615
1999-12-31 449
2000-03-31 418
2000-06-30 387
2000-09-30 650
2000-12-31 416
2001-03-31 438
2001-06-30 402
2001-09-30 619
2001-12-31 752
2002-03-31 944
2002-06-30 861
2002-09-30 1942
2002-12-31 1048
2003-03-31 1800
2003-06-30 1860
2003-09-30 1315
2003-12-31 2363
2004-03-31 2887
2004-06-30 3972
2004-09-30 4945
2004-12-31 1959
2005-03-31 3857
2005-06-30 5571
2005-09-30 3762
2005-12-31 2268
2006-03-31 1354
2006-06-30 3037
2006-09-30 1617
2006-12-31 1906
2007-03-31 2354
2007-06-30 3466
2007-09-30 5599
2007-12-31 3641
2008-03-31 4434
2008-06-30 3011
2008-09-30 2282
2008-12-31 4790
2009-03-31 3455
2009-06-30 3433
2009-09-30 4110
2009-12-31 3894
2010-03-31 2942
2010-06-30 3530
2010-09-30 4369
2010-12-31 2093
2011-03-31 2222
2011-06-30 1745
2011-09-30 2379
2011-12-31 1914
2012-03-31 3449
2012-06-30 2960
2012-09-30 2503
2012-12-31 2158
2013-03-31 2185
2013-06-30 2295
2013-09-30 2093
2013-12-31 1672
2014-03-31 3315
2014-06-30 3961
2014-09-30 2266
2014-12-31 1870
2015-03-31 1795
2015-06-30 3468
2015-09-30 2475
2015-12-31 1477
2016-03-31 1811
2016-06-30 2218
2016-09-30 2123
2016-12-31 2442
2017-03-31 2757
2017-06-30 2626
2017-09-30 2707
2017-12-31 2709
2018-03-31 3377
2018-06-30 2753
2018-09-30 3095
2018-12-31 2160
2019-03-31 2453
2019-06-30 2588
2019-09-30 1804
2019-12-31 1697
2020-03-31 2207
2020-06-30 5462
2020-09-30 3593
2020-12-31 2132
2021-03-31 2542
2021-06-30 2443
2021-09-30 2975
2021-12-31 2330
2022-03-31 2878
2022-06-30 3391
2022-09-30 3194
2022-12-31 3577
2023-03-31 3202
2023-06-30 2470
2023-09-30 2889