Quarter	US dollars
2004-12-31	1047321
2005-03-31	1104827
2005-06-30	1123087
2005-09-30	1175194
2005-12-31	1138857
2006-03-31	1328336
2006-06-30	1347721
2006-09-30	1452604
2006-12-31	1481324
2007-03-31	1643022
2007-06-30	1693275
2007-09-30	1836239
2007-12-31	1852154
2008-03-31	2062415
2008-06-30	1965295
2008-09-30	2077834
2008-12-31	1697265
2009-03-31	1689179
2009-06-30	1674537
2009-09-30	1633645
2009-12-31	1548645
2010-03-31	1582868
2010-06-30	1527378
2010-09-30	1537017
2010-12-31	1484257
2011-03-31	1495969
2011-06-30	1539671
2011-09-30	1493553
2011-12-31	1400750
2012-03-31	1446046
2012-06-30	1388366
2012-09-30	1401588
2012-12-31	1376154
2013-03-31	1315129
2013-06-30	1313729
2013-09-30	1310689
2013-12-31	1289635
2014-03-31	1247889
2014-06-30	1244125
2014-09-30	1174188
2014-12-31	1125279
2015-03-31	1104151
2015-06-30	1042729
2015-09-30	880098
2015-12-31	864700
2016-03-31	879567
2016-06-30	891189
2016-09-30	893842
2016-12-31	883713
2017-03-31	976854
2017-06-30	1020162
2017-09-30	1008887
2017-12-31	1071039
2018-03-31	1092924
2018-06-30	1032174
2018-09-30	1022760
2018-12-31	1023857
2019-03-31	1073727
2019-06-30	1124581
2019-09-30	1151886
2019-12-31	1121887
2020-03-31	1245163
2020-06-30	1196287
2020-09-30	1208979
2020-12-31	1223539
2021-03-31	1194219
2021-06-30	1246609
2021-09-30	1272457
2021-12-31	1307173
2022-03-31	1299099
2022-06-30	1243779
2022-09-30	1273339
2022-12-31	1237125
2023-03-31	1293344
2023-06-30	1382007
2023-09-30	1388534