Quarterly US dollars
1999-03-31 578
1999-06-30 616
1999-09-30 663
1999-12-31 688
2000-03-31 1458
2000-06-30 1309
2000-09-30 1993
2000-12-31 1927
2001-03-31 2178
2001-06-30 2613
2001-09-30 2621
2001-12-31 2190
2002-03-31 1767
2002-06-30 1634
2002-09-30 1706
2002-12-31 2025
2003-03-31 1516
2003-06-30 1216
2003-09-30 1331
2003-12-31 1861
2004-03-31 1335
2004-06-30 1240
2004-09-30 1388
2004-12-31 1638
2005-03-31 2192
2005-06-30 1988
2005-09-30 2542
2005-12-31 2462
2006-03-31 2952
2006-06-30 2902
2006-09-30 2795
2006-12-31 2761
2007-03-31 3213
2007-06-30 2812
2007-09-30 2995
2007-12-31 2796
2008-03-31 3432
2008-06-30 3123
2008-09-30 3721
2008-12-31 2297
2009-03-31 1063
2009-06-30 843
2009-09-30 590
2009-12-31 1129
2010-03-31 980
2010-06-30 1197
2010-09-30 1485
2010-12-31 1325
2011-03-31 1604
2011-06-30 1707
2011-09-30 1778
2011-12-31 1609
2012-03-31 2384
2012-06-30 2412
2012-09-30 2664
2012-12-31 2551
2013-03-31 2249
2013-06-30 2368
2013-09-30 2681
2013-12-31 2615
2014-03-31 2103
2014-06-30 2008
2014-09-30 1796
2014-12-31 2015
2015-03-31 1739
2015-06-30 1183
2015-09-30 1124
2015-12-31 1165
2016-03-31 1039
2016-06-30 1150
2016-09-30 1368
2016-12-31 1434
2017-03-31 1317
2017-06-30 1323
2017-09-30 1621
2017-12-31 1756
2018-03-31 1690
2018-06-30 1792
2018-09-30 2006
2018-12-31 1938
2019-03-31 1544
2019-06-30 1468
2019-09-30 1598
2019-12-31 1595
2020-03-31 1636
2020-06-30 2753
2020-09-30 2566
2020-12-31 3973
2021-03-31 4127
2021-06-30 2854
2021-09-30 3788
2021-12-31 2748
2022-03-31 2744
2022-06-30 2800
2022-09-30 3181
2022-12-31 3105
2023-03-31 3803
2023-06-30 3043
2023-09-30 3615