Quarter	US dollars
1999-03-31	409
1999-06-30	368
1999-09-30	462
1999-12-31	339
2000-03-31	396
2000-06-30	369
2000-09-30	397
2000-12-31	396
2001-03-31	457
2001-06-30	307
2001-09-30	521
2001-12-31	336
2002-03-31	311
2002-06-30	369
2002-09-30	520
2002-12-31	444
2003-03-31	339
2003-06-30	400
2003-09-30	462
2003-12-31	652
2004-03-31	834
2004-06-30	709
2004-09-30	762
2004-12-31	696
2005-03-31	849
2005-06-30	956
2005-09-30	912
2005-12-31	959
2006-03-31	896
2006-06-30	828
2006-09-30	702
2006-12-31	625
2007-03-31	771
2007-06-30	833
2007-09-30	331
2007-12-31	820
2008-03-31	869
2008-06-30	824
2008-09-30	527
2008-12-31	159
2009-03-31	287
2009-06-30	161
2009-09-30	153
2009-12-31	296
2010-03-31	361
2010-06-30	396
2010-09-30	236
2010-12-31	182
2011-03-31	237
2011-06-30	387
2011-09-30	284
2011-12-31	231
2012-03-31	109
2012-06-30	416
2012-09-30	460
2012-12-31	336
2013-03-31	785
2013-06-30	615
2013-09-30	885
2013-12-31	531
2014-03-31	680
2014-06-30	621
2014-09-30	648
2014-12-31	1004
2015-03-31	540
2015-06-30	313
2015-09-30	157
2015-12-31	212
2016-03-31	193
2016-06-30	388
2016-09-30	380
2016-12-31	239
2017-03-31	258
2017-06-30	419
2017-09-30	251
2017-12-31	287
2018-03-31	110
2018-06-30	407
2018-09-30	119
2018-12-31	209
2019-03-31	295
2019-06-30	207
2019-09-30	224
2019-12-31	184
2020-03-31	81
2020-06-30	29
2020-09-30	41
2020-12-31	11
2021-03-31	13
2021-06-30	12
2021-09-30	10
2021-12-31	12
2022-03-31	9
2022-06-30	104
2022-09-30	82
2022-12-31	211
2023-03-31	144
2023-06-30	164
2023-09-30	256