Quarter	US dollars
2004-12-31	879
2005-03-31	1272
2005-06-30	988
2005-09-30	890
2005-12-31	809
2006-03-31	763
2006-06-30	834
2006-09-30	809
2006-12-31	851
2007-03-31	1002
2007-06-30	1015
2007-09-30	1224
2007-12-31	1356
2008-03-31	1514
2008-06-30	1461
2008-09-30	1613
2008-12-31	901
2009-03-31	1167
2009-06-30	1219
2009-09-30	779
2009-12-31	1534
2010-03-31	1523
2010-06-30	1587
2010-09-30	1498
2010-12-31	1907
2011-03-31	2097
2011-06-30	1936
2011-09-30	2454
2011-12-31	2211
2012-03-31	2391
2012-06-30	2284
2012-09-30	2395
2012-12-31	2891
2013-03-31	2783
2013-06-30	2650
2013-09-30	2874
2013-12-31	2592
2014-03-31	2304
2014-06-30	2173
2014-09-30	2075
2014-12-31	2307
2015-03-31	2374
2015-06-30	1787
2015-09-30	1301
2015-12-31	1368
2016-03-31	1037
2016-06-30	1133
2016-09-30	1306
2016-12-31	1251
2017-03-31	1334
2017-06-30	1802
2017-09-30	1442
2017-12-31	1431
2018-03-31	1657
2018-06-30	1480
2018-09-30	1352
2018-12-31	1209
2019-03-31	1428
2019-06-30	1175
2019-09-30	1039
2019-12-31	1202
2020-03-31	925
2020-06-30	884
2020-09-30	765
2020-12-31	1151
2021-03-31	755
2021-06-30	690
2021-09-30	1064
2021-12-31	1656
2022-03-31	1550
2022-06-30	1984
2022-09-30	2343
2022-12-31	2420
2023-03-31	2096
2023-06-30	2064
2023-09-30	2615