Quarter	US dollars
1986-09-30	355
1986-12-31	316
1987-03-31	293
1987-06-30	302
1987-09-30	329
1987-12-31	332
1988-03-31	321
1988-06-30	290
1988-09-30	329
1988-12-31	339
1989-03-31	266
1989-06-30	217
1989-09-30	195
1989-12-31	204
1990-03-31	206
1990-06-30	277
1990-09-30	227
1990-12-31	255
1991-03-31	244
1991-06-30	260
1991-09-30	304
1991-12-31	350
1992-03-31	235
1992-06-30	287
1992-09-30	299
1992-12-31	308
1993-03-31	307
1993-06-30	277
1993-09-30	288
1993-12-31	357
1994-03-31	327
1994-06-30	308
1994-09-30	339
1994-12-31	421
1995-03-31	378
1995-06-30	278
1995-09-30	399
1995-12-31	520
1996-03-31	414
1996-06-30	485
1996-09-30	421
1996-12-31	589
1997-03-31	482
1997-06-30	414
1997-09-30	468
1997-12-31	626
1998-03-31	634
1998-06-30	638
1998-09-30	764
1998-12-31	726
1999-03-31	674
1999-06-30	677
1999-09-30	559
1999-12-31	671
2000-03-31	563
2000-06-30	548
2000-09-30	448
2000-12-31	508
2001-03-31	359
2001-06-30	288
2001-09-30	208
2001-12-31	359
2002-03-31	303
2002-06-30	214
2002-09-30	261
2002-12-31	438
2003-03-31	325
2003-06-30	270
2003-09-30	247
2003-12-31	519
2004-03-31	445
2004-06-30	304
2004-09-30	236
2004-12-31	559
2005-03-31	502
2005-06-30	349
2005-09-30	353
2005-12-31	672
2006-03-31	646
2006-06-30	506
2006-09-30	569
2006-12-31	789
2007-03-31	648
2007-06-30	1069
2007-09-30	945
2007-12-31	1220
2008-03-31	1251
2008-06-30	863
2008-09-30	1024
2008-12-31	838
2009-03-31	758
2009-06-30	651
2009-09-30	681
2009-12-31	1166
2010-03-31	1540
2010-06-30	1277
2010-09-30	1347
2010-12-31	1739
2011-03-31	1430
2011-06-30	1150
2011-09-30	1119
2011-12-31	1709
2012-03-31	1327
2012-06-30	1643
2012-09-30	1616
2012-12-31	2359
2013-03-31	2528
2013-06-30	2407
2013-09-30	2869
2013-12-31	3051
2014-03-31	3364
2014-06-30	2956
2014-09-30	2986
2014-12-31	2857
2015-03-31	3024
2015-06-30	3028
2015-09-30	2863
2015-12-31	3078
2016-03-31	2737
2016-06-30	2837
2016-09-30	2800
2016-12-31	2970
2017-03-31	3767
2017-06-30	3253
2017-09-30	2915
2017-12-31	3510
2018-03-31	3819
2018-06-30	2856
2018-09-30	2628
2018-12-31	3459
2019-03-31	4368
2019-06-30	3601
2019-09-30	3654
2019-12-31	4121
2020-03-31	3823
2020-06-30	3597
2020-09-30	4155
2020-12-31	4470
2021-03-31	4786
2021-06-30	4874
2021-09-30	4572
2021-12-31	4760
2022-03-31	5857
2022-06-30	4142
2022-09-30	3847
2022-12-31	3911
2023-03-31	3326
2023-06-30	2363
2023-09-30	1881