Quarter	US dollars
2004-12-31	65090
2005-03-31	70879
2005-06-30	107622
2005-09-30	119856
2005-12-31	130229
2006-03-31	140243
2006-06-30	143084
2006-09-30	140905
2006-12-31	151284
2007-03-31	160213
2007-06-30	170584
2007-09-30	194896
2007-12-31	201714
2008-03-31	214187
2008-06-30	210377
2008-09-30	197287
2008-12-31	198037
2009-03-31	192120
2009-06-30	199274
2009-09-30	205958
2009-12-31	214449
2010-03-31	231412
2010-06-30	246394
2010-09-30	263298
2010-12-31	268432
2011-03-31	281128
2011-06-30	305823
2011-09-30	305387
2011-12-31	302964
2012-03-31	302343
2012-06-30	295967
2012-09-30	294561
2012-12-31	307195
2013-03-31	309279
2013-06-30	296985
2013-09-30	307540
2013-12-31	315794
2014-03-31	321395
2014-06-30	319813
2014-09-30	318804
2014-12-31	315825
2015-03-31	316998
2015-06-30	301788
2015-09-30	285556
2015-12-31	271969
2016-03-31	277224
2016-06-30	268725
2016-09-30	276417
2016-12-31	259031
2017-03-31	271897
2017-06-30	289040
2017-09-30	294018
2017-12-31	309728
2018-03-31	318805
2018-06-30	306283
2018-09-30	301976
2018-12-31	313466
2019-03-31	316707
2019-06-30	314500
2019-09-30	306161
2019-12-31	320868
2020-03-31	328718
2020-06-30	324356
2020-09-30	326525
2020-12-31	353722
2021-03-31	348588
2021-06-30	353621
2021-09-30	354160
2021-12-31	357397
2022-03-31	359932
2022-06-30	345866
2022-09-30	332112
2022-12-31	340222
2023-03-31	352211
2023-06-30	339897
2023-09-30	339804