Quarterly US dollars
1999-03-31 8342
1999-06-30 8675
1999-09-30 9506
1999-12-31 8310
2000-03-31 9486
2000-06-30 8400
2000-09-30 9669
2000-12-31 9683
2001-03-31 11295
2001-06-30 9006
2001-09-30 10333
2001-12-31 11471
2002-03-31 11381
2002-06-30 11608
2002-09-30 12513
2002-12-31 14788
2003-03-31 16129
2003-06-30 20102
2003-09-30 19903
2003-12-31 20407
2004-03-31 20919
2004-06-30 21676
2004-09-30 25916
2004-12-31 29153
2005-03-31 29738
2005-06-30 28040
2005-09-30 33625
2005-12-31 33979
2006-03-31 37246
2006-06-30 46000
2006-09-30 48307
2006-12-31 60444
2007-03-31 66014
2007-06-30 73149
2007-09-30 75950
2007-12-31 71862
2008-03-31 75215
2008-06-30 80688
2008-09-30 73784
2008-12-31 62930
2009-03-31 64491
2009-06-30 68167
2009-09-30 61156
2009-12-31 55411
2010-03-31 49865
2010-06-30 45439
2010-09-30 51171
2010-12-31 49345
2011-03-31 47719
2011-06-30 50432
2011-09-30 46552
2011-12-31 44495
2012-03-31 41755
2012-06-30 36783
2012-09-30 35674
2012-12-31 36227
2013-03-31 31769
2013-06-30 29504
2013-09-30 28138
2013-12-31 32134
2014-03-31 28143
2014-06-30 30562
2014-09-30 25568
2014-12-31 29436
2015-03-31 25184
2015-06-30 25748
2015-09-30 24231
2015-12-31 19410
2016-03-31 25282
2016-06-30 21426
2016-09-30 20072
2016-12-31 19050
2017-03-31 18475
2017-06-30 19183
2017-09-30 19733
2017-12-31 21244
2018-03-31 25373
2018-06-30 21835
2018-09-30 23773
2018-12-31 25125
2019-03-31 28566
2019-06-30 26067
2019-09-30 28288
2019-12-31 23662
2020-03-31 26810
2020-06-30 23819
2020-09-30 26267
2020-12-31 24090
2021-03-31 22972
2021-06-30 25698
2021-09-30 18653
2021-12-31 14920
2022-03-31 13610
2022-06-30 13337
2022-09-30 11870
2022-12-31 13530
2023-03-31 14840
2023-06-30 15081
2023-09-30 14807