Quarter	US dollars
1999-09-30	89
1999-12-31	63
2000-03-31	102
2000-06-30	48
2000-09-30	74
2000-12-31	43
2001-03-31	134
2001-06-30	166
2001-09-30	141
2001-12-31	112
2002-03-31	107
2002-06-30	217
2002-09-30	165
2002-12-31	219
2003-03-31	191
2003-06-30	241
2003-09-30	264
2003-12-31	265
2004-03-31	198
2004-06-30	141
2004-09-30	118
2004-12-31	215
2005-03-31	147
2005-06-30	201
2005-09-30	269
2005-12-31	355
2006-03-31	217
2006-06-30	407
2006-09-30	202
2006-12-31	160
2007-03-31	186
2007-06-30	249
2007-09-30	330
2007-12-31	378
2008-03-31	648
2008-06-30	547
2008-09-30	609
2008-12-31	765
2009-03-31	589
2009-06-30	405
2009-09-30	429
2009-12-31	379
2010-03-31	370
2010-06-30	542
2010-09-30	632
2010-12-31	473
2011-03-31	510
2011-06-30	832
2011-09-30	932
2011-12-31	733
2012-03-31	529
2012-06-30	607
2012-09-30	392
2012-12-31	508
2013-03-31	591
2013-06-30	576
2013-09-30	704
2013-12-31	1221
2014-03-31	970
2014-06-30	1293
2014-09-30	1292
2014-12-31	1189
2015-03-31	1599
2015-06-30	1375
2015-09-30	1468
2015-12-31	1476
2016-03-31	1781
2016-06-30	1712
2016-09-30	1656
2016-12-31	1343
2017-03-31	1421
2017-06-30	1689
2017-09-30	1601
2017-12-31	1616
2018-03-31	1760
2018-06-30	636
2018-09-30	1196
2018-12-31	1097
2019-03-31	1085
2019-06-30	1252
2019-09-30	1825
2019-12-31	1713
2020-03-31	2902
2020-06-30	2590
2020-09-30	2582
2020-12-31	2612
2021-03-31	1355
2021-06-30	1226
2021-09-30	1207
2021-12-31	1263
2022-03-31	1158
2022-06-30	2265
2022-09-30	2588
2022-12-31	1886
2023-03-31	1492
2023-06-30	1244
2023-09-30	1095