Quarter	US dollars
2004-12-31	79839
2005-03-31	84873
2005-06-30	81288
2005-09-30	98925
2005-12-31	88686
2006-03-31	91828
2006-06-30	97088
2006-09-30	105342
2006-12-31	97306
2007-03-31	115703
2007-06-30	126377
2007-09-30	148588
2007-12-31	180214
2008-03-31	187103
2008-06-30	204298
2008-09-30	232017
2008-12-31	176756
2009-03-31	180913
2009-06-30	193687
2009-09-30	136556
2009-12-31	134158
2010-03-31	155606
2010-06-30	152285
2010-09-30	165755
2010-12-31	141754
2011-03-31	124047
2011-06-30	155306
2011-09-30	132331
2011-12-31	129458
2012-03-31	135116
2012-06-30	145927
2012-09-30	154118
2012-12-31	145643
2013-03-31	132187
2013-06-30	145778
2013-09-30	123680
2013-12-31	118175
2014-03-31	126480
2014-06-30	118417
2014-09-30	115856
2014-12-31	109453
2015-03-31	109339
2015-06-30	99728
2015-09-30	102728
2015-12-31	101910
2016-03-31	94560
2016-06-30	110723
2016-09-30	100018
2016-12-31	95364
2017-03-31	106171
2017-06-30	128548
2017-09-30	118691
2017-12-31	140616
2018-03-31	187906
2018-06-30	195109
2018-09-30	176170
2018-12-31	196547
2019-03-31	208610
2019-06-30	259132
2019-09-30	300124
2019-12-31	299148
2020-03-31	375134
2020-06-30	335855
2020-09-30	338648
2020-12-31	352616
2021-03-31	365784
2021-06-30	371663
2021-09-30	343663
2021-12-31	366406
2022-03-31	398977
2022-06-30	382332
2022-09-30	382587
2022-12-31	350579
2023-03-31	385601
2023-06-30	381431
2023-09-30	412569