Quarter	US dollars
2004-12-31	2757
2005-03-31	2820
2005-06-30	2769
2005-09-30	2943
2005-12-31	3409
2006-03-31	4274
2006-06-30	5056
2006-09-30	6111
2006-12-31	5797
2007-03-31	5809
2007-06-30	6689
2007-09-30	7398
2007-12-31	7649
2008-03-31	10697
2008-06-30	9704
2008-09-30	9413
2008-12-31	7047
2009-03-31	5936
2009-06-30	6283
2009-09-30	6699
2009-12-31	6398
2010-03-31	6411
2010-06-30	9121
2010-09-30	8358
2010-12-31	11414
2011-03-31	14289
2011-06-30	15093
2011-09-30	11985
2011-12-31	15160
2012-03-31	15484
2012-06-30	18878
2012-09-30	17841
2012-12-31	17725
2013-03-31	18909
2013-06-30	22772
2013-09-30	21954
2013-12-31	23071
2014-03-31	24804
2014-06-30	25449
2014-09-30	22953
2014-12-31	21341
2015-03-31	19352
2015-06-30	16257
2015-09-30	15314
2015-12-31	12433
2016-03-31	11338
2016-06-30	11548
2016-09-30	11123
2016-12-31	8856
2017-03-31	8672
2017-06-30	9902
2017-09-30	8384
2017-12-31	7379
2018-03-31	8806
2018-06-30	8133
2018-09-30	7141
2018-12-31	5590
2019-03-31	6207
2019-06-30	8081
2019-09-30	6626
2019-12-31	5963
2020-03-31	5424
2020-06-30	4809
2020-09-30	6065
2020-12-31	6090
2021-03-31	7291
2021-06-30	7100
2021-09-30	6847
2021-12-31	6445
2022-03-31	6389
2022-06-30	6389
2022-09-30	5628
2022-12-31	5946
2023-03-31	6585
2023-06-30	7141
2023-09-30	6753