Quarterly US dollars
1999-03-31 11933
1999-06-30 12383
1999-09-30 11096
1999-12-31 11187
2000-03-31 11298
2000-06-30 12950
2000-09-30 11905
2000-12-31 11455
2001-03-31 12960
2001-06-30 13314
2001-09-30 12884
2001-12-31 11800
2002-03-31 14073
2002-06-30 16854
2002-09-30 16244
2002-12-31 22010
2003-03-31 16292
2003-06-30 15203
2003-09-30 16185
2003-12-31 15359
2004-03-31 15403
2004-06-30 19440
2004-09-30 19212
2004-12-31 22509
2005-03-31 18919
2005-06-30 17367
2005-09-30 19997
2005-12-31 29960
2006-03-31 31014
2006-06-30 32299
2006-09-30 35696
2006-12-31 36591
2007-03-31 34580
2007-06-30 38182
2007-09-30 69494
2007-12-31 74227
2008-03-31 71509
2008-06-30 112871
2008-09-30 123847
2008-12-31 97371
2009-03-31 96825
2009-06-30 100191
2009-09-30 81238
2009-12-31 77531
2010-03-31 92419
2010-06-30 87158
2010-09-30 96920
2010-12-31 87752
2011-03-31 85721
2011-06-30 84555
2011-09-30 80971
2011-12-31 75032
2012-03-31 84250
2012-06-30 74284
2012-09-30 70099
2012-12-31 68856
2013-03-31 62580
2013-06-30 62300
2013-09-30 60427
2013-12-31 62579
2014-03-31 45568
2014-06-30 44285
2014-09-30 45664
2014-12-31 38062
2015-03-31 43148
2015-06-30 38180
2015-09-30 30402
2015-12-31 34281
2016-03-31 36896
2016-06-30 40001
2016-09-30 40919
2016-12-31 40712
2017-03-31 46873
2017-06-30 31134
2017-09-30 32374
2017-12-31 31020
2018-03-31 30560
2018-06-30 39107
2018-09-30 31773
2018-12-31 38567
2019-03-31 24805
2019-06-30 29095
2019-09-30 33927
2019-12-31 31665
2020-03-31 25842
2020-06-30 26551
2020-09-30 25093
2020-12-31 24038
2021-03-31 24458
2021-06-30 29600
2021-09-30 29500
2021-12-31 28687
2022-03-31 27573
2022-06-30 29315
2022-09-30 27396
2022-12-31 22186
2023-03-31 19427
2023-06-30 19199
2023-09-30 19601