Quarter	US dollars
2004-12-31	319648
2005-03-31	324487
2005-06-30	316326
2005-09-30	321992
2005-12-31	327673
2006-03-31	385957
2006-06-30	427707
2006-09-30	442063
2006-12-31	452756
2007-03-31	509087
2007-06-30	489840
2007-09-30	549128
2007-12-31	518353
2008-03-31	548435
2008-06-30	512518
2008-09-30	484963
2008-12-31	478757
2009-03-31	499635
2009-06-30	488159
2009-09-30	519262
2009-12-31	483507
2010-03-31	453609
2010-06-30	427042
2010-09-30	461299
2010-12-31	429489
2011-03-31	450310
2011-06-30	434193
2011-09-30	443721
2011-12-31	424834
2012-03-31	396266
2012-06-30	359311
2012-09-30	368204
2012-12-31	378142
2013-03-31	342432
2013-06-30	370888
2013-09-30	392782
2013-12-31	399156
2014-03-31	401908
2014-06-30	399943
2014-09-30	375217
2014-12-31	382316
2015-03-31	386427
2015-06-30	367013
2015-09-30	388149
2015-12-31	376549
2016-03-31	359901
2016-06-30	332714
2016-09-30	321104
2016-12-31	307117
2017-03-31	314872
2017-06-30	336240
2017-09-30	336044
2017-12-31	345021
2018-03-31	363643
2018-06-30	317128
2018-09-30	356721
2018-12-31	332277
2019-03-31	373686
2019-06-30	387490
2019-09-30	383151
2019-12-31	392548
2020-03-31	334283
2020-06-30	376511
2020-09-30	380373
2020-12-31	424941
2021-03-31	398165
2021-06-30	391727
2021-09-30	421608
2021-12-31	446237
2022-03-31	364207
2022-06-30	339996
2022-09-30	319382
2022-12-31	392787
2023-03-31	381792
2023-06-30	465401
2023-09-30	492581