Quarter	US dollars
2004-12-31	586
2005-03-31	478
2005-06-30	600
2005-09-30	504
2005-12-31	618
2006-03-31	921
2006-06-30	997
2006-09-30	4848
2006-12-31	5145
2007-03-31	620
2007-06-30	606
2007-09-30	1194
2007-12-31	1292
2008-03-31	1465
2008-06-30	1027
2008-09-30	1160
2008-12-31	1425
2009-03-31	1591
2009-06-30	1173
2009-09-30	945
2009-12-31	1188
2010-03-31	1141
2010-06-30	911
2010-09-30	1149
2010-12-31	1171
2011-03-31	1074
2011-06-30	1026
2011-09-30	978
2011-12-31	898
2012-03-31	1371
2012-06-30	893
2012-09-30	932
2012-12-31	999
2013-03-31	1427
2013-06-30	1303
2013-09-30	1184
2013-12-31	1316
2014-03-31	1384
2014-06-30	1323
2014-09-30	598
2014-12-31	674
2015-03-31	496
2015-06-30	598
2015-09-30	560
2015-12-31	516
2016-03-31	480
2016-06-30	340
2016-09-30	305
2016-12-31	253
2017-03-31	235
2017-06-30	239
2017-09-30	211
2017-12-31	151
2018-03-31	160
2018-06-30	123
2018-09-30	140
2018-12-31	139
2019-03-31	150
2019-06-30	111
2019-09-30	272
2019-12-31	166
2020-03-31	136
2020-06-30	111
2020-09-30	103
2020-12-31	60
2021-03-31	52
2021-06-30	29
2021-09-30	108
2021-12-31	260
2022-03-31	272
2022-06-30	302
2022-09-30	61
2022-12-31	112
2023-03-31	110
2023-06-30	380
2023-09-30	324