Quarter	US dollars
2004-12-31	515370
2005-03-31	599752
2005-06-30	568332
2005-09-30	648640
2005-12-31	571616
2006-03-31	629230
2006-06-30	666478
2006-09-30	697358
2006-12-31	706393
2007-03-31	796878
2007-06-30	822542
2007-09-30	933958
2007-12-31	848143
2008-03-31	1016976
2008-06-30	913914
2008-09-30	902361
2008-12-31	754181
2009-03-31	660572
2009-06-30	701296
2009-09-30	687232
2009-12-31	690913
2010-03-31	760762
2010-06-30	727674
2010-09-30	792941
2010-12-31	751772
2011-03-31	778994
2011-06-30	787685
2011-09-30	747713
2011-12-31	635036
2012-03-31	705305
2012-06-30	642497
2012-09-30	629259
2012-12-31	582349
2013-03-31	623497
2013-06-30	664739
2013-09-30	665193
2013-12-31	605340
2014-03-31	666613
2014-06-30	680544
2014-09-30	631247
2014-12-31	567409
2015-03-31	565381
2015-06-30	506147
2015-09-30	489962
2015-12-31	426679
2016-03-31	432348
2016-06-30	452496
2016-09-30	401366
2016-12-31	383722
2017-03-31	415729
2017-06-30	448445
2017-09-30	459439
2017-12-31	443683
2018-03-31	478873
2018-06-30	480103
2018-09-30	476879
2018-12-31	451730
2019-03-31	499523
2019-06-30	501904
2019-09-30	485609
2019-12-31	446746
2020-03-31	532928
2020-06-30	487082
2020-09-30	504627
2020-12-31	515165
2021-03-31	544572
2021-06-30	560480
2021-09-30	576666
2021-12-31	548150
2022-03-31	604077
2022-06-30	574875
2022-09-30	591277
2022-12-31	603182
2023-03-31	650479
2023-06-30	664558
2023-09-30	662426