Quarter	US dollars
2004-12-31	48
2005-03-31	166
2005-06-30	81
2005-09-30	25
2005-12-31	22
2006-03-31	33
2006-06-30	87
2006-09-30	90
2006-12-31	96
2007-03-31	76
2007-06-30	181
2007-09-30	57
2007-12-31	30
2008-03-31	294
2008-06-30	163
2008-09-30	25
2008-12-31	16
2009-03-31	19
2009-06-30	25
2009-09-30	211
2009-12-31	260
2010-03-31	247
2010-06-30	491
2010-09-30	307
2010-12-31	322
2011-03-31	510
2011-06-30	621
2011-09-30	187
2011-12-31	419
2012-03-31	382
2012-06-30	174
2012-09-30	276
2012-12-31	370
2013-03-31	399
2013-06-30	362
2013-09-30	372
2013-12-31	334
2014-03-31	477
2014-06-30	397
2014-09-30	399
2014-12-31	576
2015-03-31	497
2015-06-30	300
2015-09-30	394
2015-12-31	385
2016-03-31	296
2016-06-30	286
2016-09-30	334
2016-12-31	438
2017-03-31	366
2017-06-30	257
2017-09-30	189
2017-12-31	281
2018-03-31	345
2018-06-30	305
2018-09-30	336
2018-12-31	299
2019-03-31	250
2019-06-30	248
2019-09-30	275
2019-12-31	371
2020-03-31	574
2020-06-30	376
2020-09-30	159
2020-12-31	216
2021-03-31	200
2021-06-30	445
2021-09-30	260
2021-12-31	303
2022-03-31	267
2022-06-30	257
2022-09-30	234
2022-12-31	386
2023-03-31	348
2023-06-30	225
2023-09-30	334