Quarterly US dollars
1997-09-30 1975
1997-12-31 1755
1998-03-31 1780
1998-06-30 1659
1998-09-30 2749
1998-12-31 3191
1999-03-31 3759
1999-06-30 4258
1999-09-30 7438
1999-12-31 8127
2000-03-31 9156
2000-06-30 9906
2000-09-30 8504
2000-12-31 9237
2001-03-31 9180
2001-06-30 9865
2001-09-30 9544
2001-12-31 10366
2002-03-31 11821
2002-06-30 13225
2002-09-30 14425
2002-12-31 15870
2003-03-31 17213
2003-06-30 18898
2003-09-30 18251
2003-12-31 20603
2004-03-31 20329
2004-06-30 22153
2004-09-30 24768
2004-12-31 26303
2005-03-31 29654
2005-06-30 31829
2005-09-30 31486
2005-12-31 30573
2006-03-31 30302
2006-06-30 30086
2006-09-30 30288
2006-12-31 32205
2007-03-31 30538
2007-06-30 41935
2007-09-30 35511
2007-12-31 40308
2008-03-31 42897
2008-06-30 26553
2008-09-30 58428
2008-12-31 49375
2009-03-31 33477
2009-06-30 24867
2009-09-30 22139
2009-12-31 17903
2010-03-31 24809
2010-06-30 24236
2010-09-30 24407
2010-12-31 27500
2011-03-31 28788
2011-06-30 23733
2011-09-30 28554
2011-12-31 27728
2012-03-31 26572
2012-06-30 26805
2012-09-30 27652
2012-12-31 29047
2013-03-31 25110
2013-06-30 24653
2013-09-30 24709
2013-12-31 24405
2014-03-31 25972
2014-06-30 26387
2014-09-30 25899
2014-12-31 25380
2015-03-31 25497
2015-06-30 24965
2015-09-30 25458
2015-12-31 25393
2016-03-31 25485
2016-06-30 25125
2016-09-30 25550
2016-12-31 21962
2017-03-31 19952
2017-06-30 22019
2017-09-30 24877
2017-12-31 25642
2018-03-31 26721
2018-06-30 24867
2018-09-30 20711
2018-12-31 20787
2019-03-31 19201
2019-06-30 21652
2019-09-30 23930
2019-12-31 25593
2020-03-31 22230
2020-06-30 29751
2020-09-30 34552
2020-12-31 36450
2021-03-31 34166
2021-06-30 27187
2021-09-30 27774
2021-12-31 35483
2022-03-31 30964
2022-06-30 26467
2022-09-30 20672
2022-12-31 22597
2023-03-31 24548
2023-06-30 22541
2023-09-30 21705
2023-12-31 23578