Quarter	US dollars
2004-12-31	150
2005-03-31	129
2005-06-30	149
2005-09-30	51
2005-12-31	124
2006-03-31	109
2006-06-30	111
2006-09-30	121
2006-12-31	159
2007-03-31	53
2007-06-30	207
2007-09-30	236
2007-12-31	334
2008-03-31	340
2008-06-30	426
2008-09-30	412
2008-12-31	368
2009-03-31	314
2009-06-30	310
2009-09-30	283
2009-12-31	194
2010-03-31	303
2010-06-30	266
2010-09-30	304
2010-12-31	291
2011-03-31	301
2011-06-30	337
2011-09-30	335
2011-12-31	298
2012-03-31	133
2012-06-30	124
2012-09-30	199
2012-12-31	149
2013-03-31	129
2013-06-30	309
2013-09-30	330
2013-12-31	174
2014-03-31	183
2014-06-30	197
2014-09-30	211
2014-12-31	240
2015-03-31	281
2015-06-30	280
2015-09-30	463
2015-12-31	430
2016-03-31	441
2016-06-30	392
2016-09-30	372
2016-12-31	423
2017-03-31	281
2017-06-30	209
2017-09-30	219
2017-12-31	215
2018-03-31	185
2018-06-30	168
2018-09-30	156
2018-12-31	181
2019-03-31	218
2019-06-30	174
2019-09-30	153
2019-12-31	114
2020-03-31	94
2020-06-30	311
2020-09-30	221
2020-12-31	191
2021-03-31	244
2021-06-30	253
2021-09-30	245
2021-12-31	260
2022-03-31	230
2022-06-30	259
2022-09-30	388
2022-12-31	245
2023-03-31	267
2023-06-30	260
2023-09-30	245