Quarter	US dollars
1994-03-31	361
1994-06-30	335
1994-09-30	417
1994-12-31	465
1995-03-31	344
1995-06-30	342
1995-09-30	367
1995-12-31	417
1996-03-31	369
1996-06-30	329
1996-09-30	396
1996-12-31	361
1997-03-31	442
1997-06-30	314
1997-09-30	399
1997-12-31	485
1998-03-31	455
1998-06-30	444
1998-09-30	349
1998-12-31	444
1999-03-31	502
1999-06-30	406
1999-09-30	364
1999-12-31	512
2000-03-31	467
2000-06-30	406
2000-09-30	348
2000-12-31	327
2001-03-31	350
2001-06-30	354
2001-09-30	342
2001-12-31	284
2002-03-31	288
2002-06-30	300
2002-09-30	358
2002-12-31	350
2003-03-31	325
2003-06-30	400
2003-09-30	389
2003-12-31	379
2004-03-31	342
2004-06-30	299
2004-09-30	303
2004-12-31	328
2005-03-31	333
2005-06-30	298
2005-09-30	296
2005-12-31	287
2006-03-31	315
2006-06-30	309
2006-09-30	405
2006-12-31	396
2007-03-31	376
2007-06-30	346
2007-09-30	381
2007-12-31	360
2008-03-31	350
2008-06-30	388
2008-09-30	469
2008-12-31	448
2009-03-31	431
2009-06-30	415
2009-09-30	13843
2009-12-31	14344
2010-03-31	13891
2010-06-30	13531
2010-09-30	14240
2010-12-31	14118
2011-03-31	14749
2011-06-30	14939
2011-09-30	14680
2011-12-31	14593
2012-03-31	14810
2012-06-30	14510
2012-09-30	14787
2012-12-31	14786
2013-03-31	14413
2013-06-30	14425
2013-09-30	14706
2013-12-31	14877
2014-03-31	14933
2014-06-30	14907
2014-09-30	14298
2014-12-31	13962
2015-03-31	13271
2015-06-30	13526
2015-09-30	13501
2015-12-31	13438
2016-03-31	10346
2016-06-30	10291
2016-09-30	10357
2016-12-31	10994
2017-03-31	11195
2017-06-30	11720
2017-09-30	11732
2017-12-31	11504
2018-03-31	12097
2018-06-30	12044
2018-09-30	12846
2018-12-31	13270
2019-03-31	13538
2019-06-30	14147
2019-09-30	14072
2019-12-31	14336
2020-03-31	14152
2020-06-30	13859
2020-09-30	14232
2020-12-31	14320
2021-03-31	14008
2021-06-30	13400
2021-09-30	41177
2021-12-31	41140
2022-03-31	40798
2022-06-30	39630
2022-09-30	38797
2022-12-31	40738
2023-03-31	41244
2023-06-30	40899
2023-09-30	40552
2023-12-31	41298