Quarter	US dollars
2004-12-31	861638
2005-03-31	947192
2005-06-30	965865
2005-09-30	1024176
2005-12-31	1018964
2006-03-31	1126721
2006-06-30	1149347
2006-09-30	1201994
2006-12-31	1216319
2007-03-31	1310566
2007-06-30	1349362
2007-09-30	1495492
2007-12-31	1463485
2008-03-31	1643917
2008-06-30	1538658
2008-09-30	1712869
2008-12-31	1376000
2009-03-31	1400007
2009-06-30	1409313
2009-09-30	1385589
2009-12-31	1329676
2010-03-31	1479961
2010-06-30	1466870
2010-09-30	1438754
2010-12-31	1337198
2011-03-31	1411070
2011-06-30	1439909
2011-09-30	1424299
2011-12-31	1387470
2012-03-31	1544711
2012-06-30	1483663
2012-09-30	1447485
2012-12-31	1469466
2013-03-31	1305552
2013-06-30	1371822
2013-09-30	1301981
2013-12-31	1214081
2014-03-31	1236938
2014-06-30	1188695
2014-09-30	1136876
2014-12-31	1104725
2015-03-31	1041968
2015-06-30	1024966
2015-09-30	884771
2015-12-31	851435
2016-03-31	886097
2016-06-30	960950
2016-09-30	929863
2016-12-31	908770
2017-03-31	985609
2017-06-30	1029020
2017-09-30	1086397
2017-12-31	1081076
2018-03-31	1044120
2018-06-30	969135
2018-09-30	995513
2018-12-31	972619
2019-03-31	981525
2019-06-30	1000084
2019-09-30	965228
2019-12-31	959481
2020-03-31	1097107
2020-06-30	1106353
2020-09-30	1129254
2020-12-31	1100917
2021-03-31	1135160
2021-06-30	1217858
2021-09-30	1218128
2021-12-31	1181450
2022-03-31	1214420
2022-06-30	1197839
2022-09-30	1161529
2022-12-31	1142967
2023-03-31	1211077
2023-06-30	1279789
2023-09-30	1233362