Quarterly US dollars
1999-03-31 1815
1999-06-30 1924
1999-09-30 2020
1999-12-31 2593
2000-03-31 3716
2000-06-30 3426
2000-09-30 3537
2000-12-31 3271
2001-03-31 3075
2001-06-30 3293
2001-09-30 3274
2001-12-31 3255
2002-03-31 2979
2002-06-30 2988
2002-09-30 3014
2002-12-31 2998
2003-03-31 3077
2003-06-30 3135
2003-09-30 3385
2003-12-31 3343
2004-03-31 3459
2004-06-30 3386
2004-09-30 3485
2004-12-31 3922
2005-03-31 3673
2005-06-30 3395
2005-09-30 3560
2005-12-31 3362
2006-03-31 3425
2006-06-30 3741
2006-09-30 3814
2006-12-31 3483
2007-03-31 3407
2007-06-30 3472
2007-09-30 3569
2007-12-31 3501
2008-03-31 3562
2008-06-30 3256
2008-09-30 3098
2008-12-31 2900
2009-03-31 2904
2009-06-30 2508
2009-09-30 2211
2009-12-31 2099
2010-03-31 2363
2010-06-30 2199
2010-09-30 2345
2010-12-31 2665
2011-03-31 2542
2011-06-30 2608
2011-09-30 2171
2011-12-31 2045
2012-03-31 2012
2012-06-30 1853
2012-09-30 1968
2012-12-31 2133
2013-03-31 2397
2013-06-30 1806
2013-09-30 1808
2013-12-31 1720
2014-03-31 1871
2014-06-30 1779
2014-09-30 1968
2014-12-31 1752
2015-03-31 1844
2015-06-30 1876
2015-09-30 2027
2015-12-31 1904
2016-03-31 1981
2016-06-30 1857
2016-09-30 2007
2016-12-31 1782
2017-03-31 1700
2017-06-30 1689
2017-09-30 1764
2017-12-31 1685
2018-03-31 1678
2018-06-30 1542
2018-09-30 1432
2018-12-31 1397
2019-03-31 1645
2019-06-30 1541
2019-09-30 1523
2019-12-31 1934
2020-03-31 1788
2020-06-30 1347
2020-09-30 1596
2020-12-31 1733
2021-03-31 1466
2021-06-30 1563
2021-09-30 1675
2021-12-31 1776
2022-03-31 1142
2022-06-30 1259
2022-09-30 1194
2022-12-31 730
2023-03-31 1294
2023-06-30 1355
2023-09-30 1283