Quarterly US dollars
1986-09-30 7459
1986-12-31 8225
1987-03-31 7736
1987-06-30 8698
1987-09-30 7539
1987-12-31 6237
1988-03-31 4823
1988-06-30 4271
1988-09-30 3897
1988-12-31 3780
1989-03-31 3332
1989-06-30 2980
1989-09-30 2919
1989-12-31 3179
1990-03-31 3150
1990-06-30 2966
1990-09-30 2973
1990-12-31 2955
1991-03-31 2454
1991-06-30 2441
1991-09-30 2382
1991-12-31 2590
1992-03-31 2577
1992-06-30 2571
1992-09-30 2578
1992-12-31 2543
1993-03-31 2584
1993-06-30 2609
1993-09-30 2474
1993-12-31 2415
1994-03-31 2513
1994-06-30 2712
1994-09-30 2745
1994-12-31 2813
1995-03-31 2611
1995-06-30 2505
1995-09-30 2592
1995-12-31 2461
1996-03-31 2802
1996-06-30 3037
1996-09-30 3167
1996-12-31 2715
1997-03-31 2249
1997-06-30 2157
1997-09-30 2148
1997-12-31 1883
1998-03-31 1824
1998-06-30 1903
1998-09-30 1946
1998-12-31 2054
1999-03-31 2021
1999-06-30 2035
1999-09-30 2168
1999-12-31 2153
2000-03-31 2068
2000-06-30 2249
2000-09-30 2450
2000-12-31 2346
2001-03-31 2228
2001-06-30 2317
2001-09-30 2209
2001-12-31 2179
2002-03-31 1869
2002-06-30 1801
2002-09-30 1818
2002-12-31 1805
2003-03-31 1627
2003-06-30 1620
2003-09-30 1651
2003-12-31 1661
2004-03-31 1591
2004-06-30 1516
2004-09-30 1488
2004-12-31 1705
2005-03-31 1505
2005-06-30 1507
2005-09-30 1629
2005-12-31 1517
2006-03-31 1479
2006-06-30 1708
2006-09-30 1783
2006-12-31 1818
2007-03-31 1875
2007-06-30 2221
2007-09-30 2567
2007-12-31 2619
2008-03-31 2407
2008-06-30 2632
2008-09-30 2666
2008-12-31 2773
2009-03-31 2665
2009-06-30 2708
2009-09-30 2717
2009-12-31 2734
2010-03-31 3070
2010-06-30 3457
2010-09-30 3766
2010-12-31 3974
2011-03-31 4146
2011-06-30 3844
2011-09-30 3559
2011-12-31 3382
2012-03-31 3172
2012-06-30 2932
2012-09-30 2558
2012-12-31 2656
2013-03-31 3021
2013-06-30 3012
2013-09-30 3137
2013-12-31 3752
2014-03-31 3554
2014-06-30 3671
2014-09-30 3715
2014-12-31 3748
2015-03-31 3520
2015-06-30 3749
2015-09-30 3938
2015-12-31 3714
2016-03-31 3219
2016-06-30 3041
2016-09-30 2885
2016-12-31 2443
2017-03-31 2375
2017-06-30 2071
2017-09-30 2169
2017-12-31 2506
2018-03-31 2153
2018-06-30 2046
2018-09-30 2028
2018-12-31 2012
2019-03-31 1774
2019-06-30 1761
2019-09-30 1775
2019-12-31 1882
2020-03-31 2103
2020-06-30 2306
2020-09-30 2167
2020-12-31 2307
2021-03-31 1940
2021-06-30 2345
2021-09-30 1991
2021-12-31 2287
2022-03-31 1840
2022-06-30 1946
2022-09-30 2349
2022-12-31 2329
2023-03-31 2162
2023-06-30 1794
2023-09-30 2032