Quarter	US dollars
1986-09-30	2341
1986-12-31	2366
1987-03-31	2388
1987-06-30	2333
1987-09-30	2333
1987-12-31	2511
1988-03-31	2440
1988-06-30	2267
1988-09-30	2213
1988-12-31	2210
1989-03-31	2046
1989-06-30	2109
1989-09-30	2139
1989-12-31	2211
1990-03-31	2289
1990-06-30	2248
1990-09-30	2289
1990-12-31	2250
1991-03-31	2051
1991-06-30	1928
1991-09-30	1987
1991-12-31	2031
1992-03-31	1904
1992-06-30	1892
1992-09-30	1914
1992-12-31	1727
1993-03-31	1660
1993-06-30	1587
1993-09-30	1628
1993-12-31	1571
1994-03-31	1666
1994-06-30	1655
1994-09-30	1660
1994-12-31	1551
1995-03-31	1451
1995-06-30	1503
1995-09-30	1777
1995-12-31	1755
1996-03-31	1910
1996-06-30	1756
1996-09-30	1710
1996-12-31	1505
1997-03-31	1702
1997-06-30	2062
1997-09-30	1920
1997-12-31	1944
1998-03-31	2497
1998-06-30	2662
1998-09-30	2553
1998-12-31	2575
1999-03-31	2691
1999-06-30	2578
1999-09-30	2860
1999-12-31	2862
2000-03-31	2982
2000-06-30	2762
2000-09-30	2729
2000-12-31	2776
2001-03-31	3234
2001-06-30	3179
2001-09-30	3191
2001-12-31	3251
2002-03-31	3891
2002-06-30	3871
2002-09-30	4462
2002-12-31	3720
2003-03-31	3723
2003-06-30	3566
2003-09-30	3816
2003-12-31	3422
2004-03-31	3330
2004-06-30	3671
2004-09-30	3316
2004-12-31	3618
2005-03-31	3836
2005-06-30	3929
2005-09-30	3775
2005-12-31	3427
2006-03-31	4410
2006-06-30	4249
2006-09-30	4537
2006-12-31	5017
2007-03-31	6257
2007-06-30	6212
2007-09-30	7456
2007-12-31	8606
2008-03-31	7320
2008-06-30	9116
2008-09-30	9175
2008-12-31	9701
2009-03-31	8509
2009-06-30	8556
2009-09-30	10748
2009-12-31	10254
2010-03-31	10834
2010-06-30	10740
2010-09-30	14387
2010-12-31	7615
2011-03-31	11649
2011-06-30	11617
2011-09-30	8481
2011-12-31	6762
2012-03-31	9008
2012-06-30	7593
2012-09-30	8400
2012-12-31	7935
2013-03-31	9064
2013-06-30	8904
2013-09-30	8360
2013-12-31	10546
2014-03-31	8192
2014-06-30	9761
2014-09-30	9850
2014-12-31	8959
2015-03-31	8128
2015-06-30	10053
2015-09-30	8674
2015-12-31	6802
2016-03-31	6435
2016-06-30	11672
2016-09-30	11405
2016-12-31	10848
2017-03-31	12855
2017-06-30	8749
2017-09-30	7395
2017-12-31	9211
2018-03-31	10203
2018-06-30	6012
2018-09-30	6302
2018-12-31	5572
2019-03-31	6654
2019-06-30	6438
2019-09-30	6045
2019-12-31	5664
2020-03-31	5424
2020-06-30	5618
2020-09-30	5867
2020-12-31	7712
2021-03-31	2271
2021-06-30	1986
2021-09-30	1947
2021-12-31	1699
2022-03-31	2232
2022-06-30	1953
2022-09-30	1989
2022-12-31	1478
2023-03-31	2646
2023-06-30	2541
2023-09-30	5390