Quarterly US dollars
1997-09-30 9834
1997-12-31 10533
1998-03-31 10993
1998-06-30 11191
1998-09-30 13736
1998-12-31 11615
1999-03-31 13438
1999-06-30 12360
1999-09-30 13438
1999-12-31 12786
2000-03-31 13943
2000-06-30 13082
2000-09-30 12805
2000-12-31 13793
2001-03-31 13283
2001-06-30 13535
2001-09-30 16100
2001-12-31 18903
2002-03-31 19274
2002-06-30 23816
2002-09-30 25785
2002-12-31 27255
2003-03-31 27543
2003-06-30 30653
2003-09-30 35334
2003-12-31 38519
2004-03-31 39570
2004-06-30 39656
2004-09-30 42984
2004-12-31 65630
2005-03-31 66096
2005-06-30 72971
2005-09-30 77557
2005-12-31 78278
2006-03-31 80131
2006-06-30 84548
2006-09-30 88108
2006-12-31 96938
2007-03-31 100042
2007-06-30 110818
2007-09-30 127785
2007-12-31 127747
2008-03-31 113557
2008-06-30 117546
2008-09-30 108535
2008-12-31 97700
2009-03-31 96658
2009-06-30 95736
2009-09-30 87191
2009-12-31 78627
2010-03-31 80123
2010-06-30 74003
2010-09-30 82126
2010-12-31 80161
2011-03-31 82185
2011-06-30 81711
2011-09-30 90140
2011-12-31 78673
2012-03-31 83072
2012-06-30 74435
2012-09-30 68505
2012-12-31 72293
2013-03-31 64397
2013-06-30 57863
2013-09-30 53922
2013-12-31 59916
2014-03-31 61052
2014-06-30 62050
2014-09-30 57717
2014-12-31 55507
2015-03-31 55074
2015-06-30 61499
2015-09-30 60168
2015-12-31 63846
2016-03-31 73248
2016-06-30 68981
2016-09-30 64936
2016-12-31 62029
2017-03-31 64685
2017-06-30 69402
2017-09-30 65210
2017-12-31 63625
2018-03-31 69619
2018-06-30 70092
2018-09-30 66027
2018-12-31 65320
2019-03-31 59642
2019-06-30 64828
2019-09-30 69495
2019-12-31 74038
2020-03-31 73172
2020-06-30 63732
2020-09-30 69482
2020-12-31 70593
2021-03-31 70738
2021-06-30 73781
2021-09-30 73948
2021-12-31 73425
2022-03-31 72053
2022-06-30 73535
2022-09-30 67934
2022-12-31 70687
2023-03-31 70654
2023-06-30 74957
2023-09-30 73354