Quarter	US dollars
2004-12-31	35965
2005-03-31	38863
2005-06-30	44976
2005-09-30	45886
2005-12-31	47510
2006-03-31	49272
2006-06-30	52175
2006-09-30	52917
2006-12-31	63377
2007-03-31	65445
2007-06-30	70252
2007-09-30	73591
2007-12-31	79708
2008-03-31	85081
2008-06-30	93978
2008-09-30	85642
2008-12-31	71999
2009-03-31	72266
2009-06-30	80222
2009-09-30	86313
2009-12-31	87286
2010-03-31	95981
2010-06-30	96059
2010-09-30	107933
2010-12-31	110678
2011-03-31	116325
2011-06-30	130248
2011-09-30	113208
2011-12-31	114057
2012-03-31	116935
2012-06-30	107104
2012-09-30	108862
2012-12-31	102308
2013-03-31	104145
2013-06-30	91416
2013-09-30	96358
2013-12-31	88210
2014-03-31	91433
2014-06-30	97754
2014-09-30	93782
2014-12-31	88499
2015-03-31	83214
2015-06-30	80374
2015-09-30	68701
2015-12-31	66082
2016-03-31	72712
2016-06-30	69295
2016-09-30	32633
2016-12-31	31245
2017-03-31	33484
2017-06-30	35717
2017-09-30	36218
2017-12-31	36268
2018-03-31	38345
2018-06-30	35899
2018-09-30	38063
2018-12-31	38682
2019-03-31	41472
2019-06-30	39877
2019-09-30	37755
2019-12-31	39685
2020-03-31	33146
2020-06-30	35646
2020-09-30	33375
2020-12-31	36743
2021-03-31	34221
2021-06-30	36788
2021-09-30	35787
2021-12-31	35878
2022-03-31	39235
2022-06-30	38250
2022-09-30	39548
2022-12-31	41015
2023-03-31	43424
2023-06-30	46840
2023-09-30	45956