Quarterly US dollars
1999-03-31 12406
1999-06-30 11803
1999-09-30 10866
1999-12-31 12078
2000-03-31 10838
2000-06-30 11036
2000-09-30 10827
2000-12-31 11422
2001-03-31 11175
2001-06-30 14638
2001-09-30 15449
2001-12-31 18180
2002-03-31 18424
2002-06-30 17097
2002-09-30 17969
2002-12-31 17789
2003-03-31 18663
2003-06-30 15492
2003-09-30 14825
2003-12-31 17060
2004-03-31 17265
2004-06-30 16659
2004-09-30 14132
2004-12-31 13849
2005-03-31 15146
2005-06-30 17473
2005-09-30 14440
2005-12-31 14302
2006-03-31 15550
2006-06-30 14830
2006-09-30 17520
2006-12-31 16708
2007-03-31 22256
2007-06-30 19604
2007-09-30 19983
2007-12-31 24511
2008-03-31 23262
2008-06-30 23763
2008-09-30 24133
2008-12-31 28588
2009-03-31 23574
2009-06-30 26970
2009-09-30 27991
2009-12-31 27550
2010-03-31 32538
2010-06-30 22172
2010-09-30 20037
2010-12-31 28847
2011-03-31 30013
2011-06-30 25607
2011-09-30 25186
2011-12-31 21504
2012-03-31 27712
2012-06-30 23149
2012-09-30 29142
2012-12-31 23250
2013-03-31 22475
2013-06-30 16853
2013-09-30 20132
2013-12-31 19903
2014-03-31 19047
2014-06-30 22041
2014-09-30 20747
2014-12-31 23233
2015-03-31 21549
2015-06-30 26960
2015-09-30 16812
2015-12-31 17548
2016-03-31 15085
2016-06-30 15006
2016-09-30 16604
2016-12-31 17216
2017-03-31 18598
2017-06-30 19716
2017-09-30 20036
2017-12-31 26594
2018-03-31 25475
2018-06-30 27249
2018-09-30 29947
2018-12-31 22780
2019-03-31 26767
2019-06-30 24995
2019-09-30 24686
2019-12-31 24104
2020-03-31 30543
2020-06-30 32410
2020-09-30 30182
2020-12-31 33841
2021-03-31 31798
2021-06-30 45025
2021-09-30 47091
2021-12-31 51769
2022-03-31 46410
2022-06-30 46477
2022-09-30 44782
2022-12-31 49044
2023-03-31 50012
2023-06-30 49278
2023-09-30 51439