Quarter	US dollars
2004-12-31	17776
2005-03-31	18087
2005-06-30	20877
2005-09-30	14849
2005-12-31	16320
2006-03-31	15539
2006-06-30	19678
2006-09-30	22198
2006-12-31	32245
2007-03-31	29453
2007-06-30	13503
2007-09-30	28200
2007-12-31	41331
2008-03-31	36703
2008-06-30	36797
2008-09-30	36014
2008-12-31	50877
2009-03-31	33321
2009-06-30	39181
2009-09-30	50159
2009-12-31	60939
2010-03-31	42454
2010-06-30	55855
2010-09-30	69743
2010-12-31	76251
2011-03-31	53114
2011-06-30	56541
2011-09-30	81344
2011-12-31	78973
2012-03-31	65600
2012-06-30	79316
2012-09-30	67314
2012-12-31	50465
2013-03-31	30318
2013-06-30	21445
2013-09-30	30872
2013-12-31	26926
2014-03-31	36792
2014-06-30	38891
2014-09-30	36672
2014-12-31	38505
2015-03-31	48088
2015-06-30	50662
2015-09-30	56907
2015-12-31	57272
2016-03-31	70792
2016-06-30	71560
2016-09-30	78575
2016-12-31	73852
2017-03-31	64579
2017-06-30	64491
2017-09-30	73987
2017-12-31	67846
2018-03-31	84034
2018-06-30	74143
2018-09-30	74698
2018-12-31	76181
2019-03-31	78657
2019-06-30	85085
2019-09-30	76480
2019-12-31	90074
2020-03-31	82187
2020-06-30	88660
2020-09-30	104109
2020-12-31	105335
2021-03-31	87558
2021-06-30	88724
2021-09-30	88641
2021-12-31	68547
2022-03-31	60240
2022-06-30	65387
2022-09-30	70245
2022-12-31	70996
2023-03-31	66141
2023-06-30	80223
2023-09-30	87171