Quarter	US dollars
2004-12-31	169
2005-03-31	229
2005-06-30	213
2005-09-30	239
2005-12-31	355
2006-03-31	229
2006-06-30	351
2006-09-30	385
2006-12-31	319
2007-03-31	226
2007-06-30	279
2007-09-30	261
2007-12-31	307
2008-03-31	316
2008-06-30	281
2008-09-30	478
2008-12-31	351
2009-03-31	387
2009-06-30	321
2009-09-30	381
2009-12-31	438
2010-03-31	434
2010-06-30	153
2010-09-30	271
2010-12-31	532
2011-03-31	389
2011-06-30	462
2011-09-30	481
2011-12-31	481
2012-03-31	1058
2012-06-30	1054
2012-09-30	953
2012-12-31	1214
2013-03-31	3411
2013-06-30	3578
2013-09-30	4654
2013-12-31	4072
2014-03-31	3900
2014-06-30	3626
2014-09-30	3581
2014-12-31	3237
2015-03-31	3409
2015-06-30	3254
2015-09-30	3222
2015-12-31	3078
2016-03-31	2930
2016-06-30	2809
2016-09-30	2684
2016-12-31	2628
2017-03-31	2384
2017-06-30	2289
2017-09-30	2096
2017-12-31	2005
2018-03-31	1932
2018-06-30	2106
2018-09-30	1738
2018-12-31	1831
2019-03-31	1893
2019-06-30	2017
2019-09-30	2043
2019-12-31	1934
2020-03-31	1834
2020-06-30	1746
2020-09-30	1703
2020-12-31	1627
2021-03-31	1453
2021-06-30	1199
2021-09-30	1207
2021-12-31	1001
2022-03-31	1008
2022-06-30	908
2022-09-30	893
2022-12-31	897
2023-03-31	952
2023-06-30	957
2023-09-30	1027