Quarterly US dollars
1986-09-30 4852
1986-12-31 5087
1987-03-31 5140
1987-06-30 5102
1987-09-30 5098
1987-12-31 5175
1988-03-31 5216
1988-06-30 5171
1988-09-30 5266
1988-12-31 5123
1989-03-31 4827
1989-06-30 4760
1989-09-30 4561
1989-12-31 4239
1990-03-31 3898
1990-06-30 3385
1990-09-30 3283
1990-12-31 3029
1991-03-31 2900
1991-06-30 2815
1991-09-30 2830
1991-12-31 2970
1992-03-31 3056
1992-06-30 2949
1992-09-30 3025
1992-12-31 3451
1993-03-31 3622
1993-06-30 3533
1993-09-30 3432
1993-12-31 4332
1994-03-31 4043
1994-06-30 4403
1994-09-30 5104
1994-12-31 5101
1995-03-31 4378
1995-06-30 4474
1995-09-30 4004
1995-12-31 4477
1996-03-31 4186
1996-06-30 4645
1996-09-30 4445
1996-12-31 4131
1997-03-31 5746
1997-06-30 5268
1997-09-30 6425
1997-12-31 5675
1998-03-31 5674
1998-06-30 4801
1998-09-30 4760
1998-12-31 5374
1999-03-31 5046
1999-06-30 5079
1999-09-30 4814
1999-12-31 5134
2000-03-31 4972
2000-06-30 5166
2000-09-30 4741
2000-12-31 4842
2001-03-31 4085
2001-06-30 4135
2001-09-30 3836
2001-12-31 3157
2002-03-31 2241
2002-06-30 2239
2002-09-30 2198
2002-12-31 1897
2003-03-31 1990
2003-06-30 2028
2003-09-30 2100
2003-12-31 2355
2004-03-31 2436
2004-06-30 2632
2004-09-30 2810
2004-12-31 2640
2005-03-31 2682
2005-06-30 2943
2005-09-30 3798
2005-12-31 3791
2006-03-31 4164
2006-06-30 4365
2006-09-30 4692
2006-12-31 4775
2007-03-31 4938
2007-06-30 6942
2007-09-30 6242
2007-12-31 6440
2008-03-31 6312
2008-06-30 6453
2008-09-30 5449
2008-12-31 3934
2009-03-31 4229
2009-06-30 3797
2009-09-30 3240
2009-12-31 3003
2010-03-31 3287
2010-06-30 2957
2010-09-30 3266
2010-12-31 2927
2011-03-31 3013
2011-06-30 2798
2011-09-30 2761
2011-12-31 2499
2012-03-31 2802
2012-06-30 2327
2012-09-30 2065
2012-12-31 1736
2013-03-31 1756
2013-06-30 1660
2013-09-30 1810
2013-12-31 1598
2014-03-31 1629
2014-06-30 1829
2014-09-30 1342
2014-12-31 1248
2015-03-31 1334
2015-06-30 1592
2015-09-30 1889
2015-12-31 1890
2016-03-31 3522
2016-06-30 3734
2016-09-30 2279
2016-12-31 1887
2017-03-31 2278
2017-06-30 2035
2017-09-30 3878
2017-12-31 4057
2018-03-31 4049
2018-06-30 3356
2018-09-30 4021
2018-12-31 4042
2019-03-31 3259
2019-06-30 2775
2019-09-30 1488
2019-12-31 1807
2020-03-31 1301
2020-06-30 821
2020-09-30 863
2020-12-31 675
2021-03-31 685
2021-06-30 723
2021-09-30 680
2021-12-31 623
2022-03-31 563
2022-06-30 473
2022-09-30 409
2022-12-31 380
2023-03-31 434
2023-06-30 410
2023-09-30 334