Quarter	US dollars
2004-12-31	121
2005-03-31	132
2005-06-30	133
2005-09-30	145
2005-12-31	146
2006-03-31	142
2006-06-30	185
2006-09-30	222
2006-12-31	217
2007-03-31	231
2007-06-30	277
2007-09-30	291
2007-12-31	325
2008-03-31	382
2008-06-30	400
2008-09-30	385
2008-12-31	329
2009-03-31	341
2009-06-30	359
2009-09-30	377
2009-12-31	368
2010-03-31	308
2010-06-30	290
2010-09-30	298
2010-12-31	299
2011-03-31	279
2011-06-30	310
2011-09-30	299
2011-12-31	317
2012-03-31	369
2012-06-30	361
2012-09-30	412
2012-12-31	459
2013-03-31	393
2013-06-30	447
2013-09-30	528
2013-12-31	433
2014-03-31	413
2014-06-30	393
2014-09-30	381
2014-12-31	365
2015-03-31	336
2015-06-30	406
2015-09-30	292
2015-12-31	264
2016-03-31	208
2016-06-30	214
2016-09-30	208
2016-12-31	198
2017-03-31	214
2017-06-30	64
2017-09-30	70
2017-12-31	54
2018-03-31	39
2018-06-30	26
2018-09-30	130
2018-12-31	134
2019-03-31	202
2019-06-30	177
2019-09-30	216
2019-12-31	244
2020-03-31	217
2020-06-30	105
2020-09-30	100
2020-12-31	97
2021-03-31	121
2021-06-30	140
2021-09-30	142
2021-12-31	132
2022-03-31	96
2022-06-30	79
2022-09-30	78
2022-12-31	55
2023-03-31	58
2023-06-30	60
2023-09-30	71