Quarterly US dollars
1999-03-31 7616
1999-06-30 6720
1999-09-30 8682
1999-12-31 10321
2000-03-31 10110
2000-06-30 10509
2000-09-30 11249
2000-12-31 12367
2001-03-31 12268
2001-06-30 12579
2001-09-30 14180
2001-12-31 15985
2002-03-31 19895
2002-06-30 18809
2002-09-30 20961
2002-12-31 19980
2003-03-31 20565
2003-06-30 24435
2003-09-30 26124
2003-12-31 26534
2004-03-31 18830
2004-06-30 19195
2004-09-30 19740
2004-12-31 19571
2005-03-31 16754
2005-06-30 15980
2005-09-30 19227
2005-12-31 17758
2006-03-31 21654
2006-06-30 20185
2006-09-30 20683
2006-12-31 18611
2007-03-31 21509
2007-06-30 22932
2007-09-30 22915
2007-12-31 22834
2008-03-31 22913
2008-06-30 20576
2008-09-30 14684
2008-12-31 16146
2009-03-31 18583
2009-06-30 19636
2009-09-30 20850
2009-12-31 18690
2010-03-31 21921
2010-06-30 26474
2010-09-30 26741
2010-12-31 18897
2011-03-31 23676
2011-06-30 26839
2011-09-30 32285
2011-12-31 29995
2012-03-31 37408
2012-06-30 38287
2012-09-30 44162
2012-12-31 46871
2013-03-31 51331
2013-06-30 51164
2013-09-30 52920
2013-12-31 47702
2014-03-31 0
2014-06-30 278
2014-09-30 207
2014-12-31 290
2015-03-31 580
2015-06-30 372
2015-09-30 224
2015-12-31 484
2016-03-31 816
2016-06-30 977
2016-09-30 1076
2016-12-31 1103
2017-03-31 1028
2017-06-30 852
2017-09-30 701
2017-12-31 704
2018-03-31 1025
2018-06-30 780
2018-09-30 777
2018-12-31 504
2019-03-31 682
2019-06-30 634
2019-09-30 850
2019-12-31 545
2020-03-31 595
2020-06-30 711
2020-09-30 844
2020-12-31 1785
2021-03-31 2109
2021-06-30 2021
2021-09-30 2045
2021-12-31 2965
2022-03-31 2834
2022-06-30 3169
2022-09-30 3650
2022-12-31 3307
2023-03-31 3830
2023-06-30 5376
2023-09-30 3639