Quarterly US dollars
1999-03-31 1134
1999-06-30 1082
1999-09-30 1152
1999-12-31 1192
2000-03-31 1150
2000-06-30 1176
2000-09-30 1125
2000-12-31 1469
2001-03-31 1296
2001-06-30 987
2001-09-30 1214
2001-12-31 1085
2002-03-31 1079
2002-06-30 1843
2002-09-30 2094
2002-12-31 2255
2003-03-31 2066
2003-06-30 2054
2003-09-30 1603
2003-12-31 1842
2004-03-31 1647
2004-06-30 1525
2004-09-30 1599
2004-12-31 2066
2005-03-31 1768
2005-06-30 1776
2005-09-30 1845
2005-12-31 1758
2006-03-31 1888
2006-06-30 2564
2006-09-30 1799
2006-12-31 2615
2007-03-31 2181
2007-06-30 2727
2007-09-30 3040
2007-12-31 5676
2008-03-31 5528
2008-06-30 5326
2008-09-30 4532
2008-12-31 3372
2009-03-31 2591
2009-06-30 2849
2009-09-30 2904
2009-12-31 2690
2010-03-31 3132
2010-06-30 2528
2010-09-30 3264
2010-12-31 3266
2011-03-31 3487
2011-06-30 3845
2011-09-30 4360
2011-12-31 3791
2012-03-31 3148
2012-06-30 2998
2012-09-30 2355
2012-12-31 3148
2013-03-31 2575
2013-06-30 2899
2013-09-30 3231
2013-12-31 3531
2014-03-31 2851
2014-06-30 2879
2014-09-30 2706
2014-12-31 2717
2015-03-31 2533
2015-06-30 2460
2015-09-30 2513
2015-12-31 2778
2016-03-31 2883
2016-06-30 2774
2016-09-30 2475
2016-12-31 2345
2017-03-31 2118
2017-06-30 2038
2017-09-30 1995
2017-12-31 2129
2018-03-31 2229
2018-06-30 2155
2018-09-30 2029
2018-12-31 1829
2019-03-31 1768
2019-06-30 1543
2019-09-30 1287
2019-12-31 1300
2020-03-31 1208
2020-06-30 1218
2020-09-30 1262
2020-12-31 1386
2021-03-31 1332
2021-06-30 1079
2021-09-30 1148
2021-12-31 1008
2022-03-31 1038
2022-06-30 1168
2022-09-30 1027
2022-12-31 1304
2023-03-31 1440
2023-06-30 1463
2023-09-30 1480