Quarterly US dollars
1999-03-31 458513
1999-06-30 475883
1999-09-30 491508
1999-12-31 484945
2000-03-31 538902
2000-06-30 545808
2000-09-30 566873
2000-12-31 567567
2001-03-31 628559
2001-06-30 619859
2001-09-30 652898
2001-12-31 634043
2002-03-31 641405
2002-06-30 707010
2002-09-30 728725
2002-12-31 740906
2003-03-31 850620
2003-06-30 890171
2003-09-30 932282
2003-12-31 926528
2004-03-31 1044833
2004-06-30 1001466
2004-09-30 1066711
2004-12-31 1153991
2005-03-31 1225710
2005-06-30 1262618
2005-09-30 1292502
2005-12-31 1260691
2006-03-31 1416181
2006-06-30 1462546
2006-09-30 1577706
2006-12-31 1701890
2007-03-31 1933284
2007-06-30 2074298
2007-09-30 2202167
2007-12-31 2161921
2008-03-31 2294636
2008-06-30 2104667
2008-09-30 2069666
2008-12-31 1722424
2009-03-31 1667529
2009-06-30 1668780
2009-09-30 1737363
2009-12-31 1579198
2010-03-31 1622160
2010-06-30 1551266
2010-09-30 1746925
2010-12-31 1761499
2011-03-31 1877614
2011-06-30 1939148
2011-09-30 1895415
2011-12-31 1821084
2012-03-31 1880309
2012-06-30 1853491
2012-09-30 1838375
2012-12-31 1814048
2013-03-31 1743915
2013-06-30 1739585
2013-09-30 1635041
2013-12-31 1637224
2014-03-31 1635406
2014-06-30 1659248
2014-09-30 1612496
2014-12-31 1583519
2015-03-31 1558775
2015-06-30 1474694
2015-09-30 1498037
2015-12-31 1426691
2016-03-31 1496123
2016-06-30 1484687
2016-09-30 1450385
2016-12-31 1299088
2017-03-31 1366751
2017-06-30 1393856
2017-09-30 1457537
2017-12-31 1480104
2018-03-31 1629612
2018-06-30 1506116
2018-09-30 1490803
2018-12-31 1585039
2019-03-31 1562841
2019-06-30 1559483
2019-09-30 1587848
2019-12-31 1588022
2020-03-31 1817102
2020-06-30 1689245
2020-09-30 1717621
2020-12-31 1774452
2021-03-31 1725990
2021-06-30 1713339
2021-09-30 1686986
2021-12-31 1714830
2022-03-31 1741437
2022-06-30 1663272
2022-09-30 1651606
2022-12-31 1641719
2023-03-31 1662897
2023-06-30 1629331
2023-09-30 1679239