Quarterly US dollars
1999-03-31 4861
1999-06-30 5059
1999-09-30 4616
1999-12-31 4670
2000-03-31 3516
2000-06-30 3266
2000-09-30 3275
2000-12-31 3030
2001-03-31 4480
2001-06-30 4776
2001-09-30 4238
2001-12-31 3433
2002-03-31 2937
2002-06-30 3751
2002-09-30 3636
2002-12-31 4038
2003-03-31 3927
2003-06-30 4457
2003-09-30 4137
2003-12-31 4657
2004-03-31 4387
2004-06-30 4841
2004-09-30 5066
2004-12-31 5682
2005-03-31 5311
2005-06-30 6753
2005-09-30 5441
2005-12-31 5560
2006-03-31 5526
2006-06-30 6027
2006-09-30 7368
2006-12-31 8503
2007-03-31 7976
2007-06-30 10840
2007-09-30 9264
2007-12-31 9180
2008-03-31 8144
2008-06-30 8486
2008-09-30 7932
2008-12-31 7441
2009-03-31 7762
2009-06-30 6778
2009-09-30 7067
2009-12-31 7120
2010-03-31 7380
2010-06-30 6198
2010-09-30 7338
2010-12-31 7272
2011-03-31 6888
2011-06-30 7393
2011-09-30 6488
2011-12-31 5783
2012-03-31 6754
2012-06-30 6782
2012-09-30 10104
2012-12-31 9420
2013-03-31 9409
2013-06-30 8378
2013-09-30 9225
2013-12-31 10590
2014-03-31 10282
2014-06-30 10073
2014-09-30 9654
2014-12-31 9461
2015-03-31 10673
2015-06-30 10527
2015-09-30 9591
2015-12-31 9438
2016-03-31 10757
2016-06-30 10286
2016-09-30 11588
2016-12-31 9852
2017-03-31 12488
2017-06-30 13087
2017-09-30 13970
2017-12-31 14884
2018-03-31 15654
2018-06-30 12868
2018-09-30 14745
2018-12-31 13203
2019-03-31 16571
2019-06-30 16418
2019-09-30 15117
2019-12-31 13532
2020-03-31 11066
2020-06-30 10912
2020-09-30 10268
2020-12-31 9964
2021-03-31 10072
2021-06-30 8315
2021-09-30 7598
2021-12-31 6383
2022-03-31 9076
2022-06-30 5394
2022-09-30 6675
2022-12-31 6630
2023-03-31 8335
2023-06-30 4299
2023-09-30 5876