Quarter	US dollars
2004-12-31	5685
2005-03-31	5790
2005-06-30	6374
2005-09-30	7401
2005-12-31	11362
2006-03-31	11855
2006-06-30	10525
2006-09-30	11377
2006-12-31	13799
2007-03-31	15879
2007-06-30	18515
2007-09-30	26287
2007-12-31	28651
2008-03-31	32239
2008-06-30	31505
2008-09-30	27031
2008-12-31	33219
2009-03-31	31150
2009-06-30	29175
2009-09-30	30537
2009-12-31	33194
2010-03-31	35304
2010-06-30	39631
2010-09-30	43941
2010-12-31	48026
2011-03-31	51448
2011-06-30	69787
2011-09-30	80157
2011-12-31	75703
2012-03-31	69728
2012-06-30	71525
2012-09-30	69363
2012-12-31	76033
2013-03-31	77731
2013-06-30	79185
2013-09-30	87190
2013-12-31	96509
2014-03-31	99026
2014-06-30	96128
2014-09-30	93292
2014-12-31	99768
2015-03-31	98240
2015-06-30	93880
2015-09-30	86694
2015-12-31	82348
2016-03-31	81447
2016-06-30	81021
2016-09-30	79536
2016-12-31	80889
2017-03-31	75620
2017-06-30	92085
2017-09-30	95380
2017-12-31	105078
2018-03-31	104650
2018-06-30	101311
2018-09-30	99984
2018-12-31	104028
2019-03-31	103523
2019-06-30	105719
2019-09-30	102167
2019-12-31	108064
2020-03-31	113262
2020-06-30	109186
2020-09-30	110027
2020-12-31	121606
2021-03-31	116812
2021-06-30	120334
2021-09-30	119952
2021-12-31	122356
2022-03-31	126164
2022-06-30	118913
2022-09-30	116100
2022-12-31	116311
2023-03-31	118096
2023-06-30	114657
2023-09-30	120250