Quarterly US dollars
1986-09-30 7608
1986-12-31 7398
1987-03-31 7347
1987-06-30 7254
1987-09-30 7079
1987-12-31 7641
1988-03-31 5486
1988-06-30 5567
1988-09-30 5298
1988-12-31 6075
1989-03-31 5586
1989-06-30 5447
1989-09-30 5461
1989-12-31 5540
1990-03-31 5732
1990-06-30 5578
1990-09-30 5961
1990-12-31 6098
1991-03-31 5256
1991-06-30 5346
1991-09-30 4879
1991-12-31 4679
1992-03-31 4504
1992-06-30 4608
1992-09-30 4430
1992-12-31 4078
1993-03-31 4134
1993-06-30 4270
1993-09-30 3705
1993-12-31 3705
1994-03-31 3604
1994-06-30 3202
1994-09-30 3484
1994-12-31 3334
1995-03-31 3040
1995-06-30 2759
1995-09-30 2935
1995-12-31 2877
1996-03-31 2793
1996-06-30 2793
1996-09-30 2973
1996-12-31 3119
1997-03-31 3281
1997-06-30 2567
1997-09-30 2475
1997-12-31 2570
1998-03-31 2503
1998-06-30 2787
1998-09-30 2668
1998-12-31 2432
1999-03-31 2537
1999-06-30 2554
1999-09-30 2856
1999-12-31 3464
2000-03-31 4576
2000-06-30 4155
2000-09-30 4198
2000-12-31 3855
2001-03-31 3999
2001-06-30 4257
2001-09-30 3835
2001-12-31 3823
2002-03-31 3484
2002-06-30 3360
2002-09-30 3308
2002-12-31 3391
2003-03-31 3515
2003-06-30 3552
2003-09-30 3669
2003-12-31 3557
2004-03-31 3588
2004-06-30 3477
2004-09-30 3551
2004-12-31 3974
2005-03-31 3804
2005-06-30 3593
2005-09-30 3777
2005-12-31 3609
2006-03-31 3725
2006-06-30 4071
2006-09-30 3995
2006-12-31 3841
2007-03-31 3983
2007-06-30 4310
2007-09-30 4057
2007-12-31 4254
2008-03-31 4325
2008-06-30 4051
2008-09-30 3887
2008-12-31 3735
2009-03-31 3549
2009-06-30 3747
2009-09-30 2978
2009-12-31 2972
2010-03-31 3472
2010-06-30 3162
2010-09-30 3048
2010-12-31 3581
2011-03-31 3161
2011-06-30 2965
2011-09-30 2518
2011-12-31 2372
2012-03-31 2272
2012-06-30 2003
2012-09-30 2080
2012-12-31 2262
2013-03-31 2563
2013-06-30 1981
2013-09-30 2001
2013-12-31 1916
2014-03-31 2029
2014-06-30 1882
2014-09-30 2070
2014-12-31 1849
2015-03-31 1931
2015-06-30 1934
2015-09-30 2120
2015-12-31 2028
2016-03-31 2154
2016-06-30 1977
2016-09-30 2169
2016-12-31 1984
2017-03-31 1819
2017-06-30 1877
2017-09-30 1884
2017-12-31 1767
2018-03-31 1854
2018-06-30 1651
2018-09-30 1541
2018-12-31 1491
2019-03-31 1761
2019-06-30 1600
2019-09-30 1575
2019-12-31 1989
2020-03-31 1867
2020-06-30 1432
2020-09-30 1671
2020-12-31 1797
2021-03-31 1548
2021-06-30 1644
2021-09-30 1737
2021-12-31 2000
2022-03-31 1233
2022-06-30 1359
2022-09-30 1426
2022-12-31 854
2023-03-31 1403
2023-06-30 1454
2023-09-30 1362