Quarterly US dollars
1986-09-30 341
1986-12-31 375
1987-03-31 412
1987-06-30 459
1987-09-30 564
1987-12-31 579
1988-03-31 648
1988-06-30 690
1988-09-30 777
1988-12-31 933
1989-03-31 1137
1989-06-30 1129
1989-09-30 1147
1989-12-31 1316
1990-03-31 1573
1990-06-30 1711
1990-09-30 2054
1990-12-31 2048
1991-03-31 1823
1991-06-30 1693
1991-09-30 1796
1991-12-31 2026
1992-03-31 1905
1992-06-30 2019
1992-09-30 2110
1992-12-31 1824
1993-03-31 1649
1993-06-30 1517
1993-09-30 1609
1993-12-31 1589
1994-03-31 1726
1994-06-30 1746
1994-09-30 1753
1994-12-31 1800
1995-03-31 1707
1995-06-30 1844
1995-09-30 1806
1995-12-31 1749
1996-03-31 1724
1996-06-30 1959
1996-09-30 1779
1996-12-31 1951
1997-03-31 1840
1997-06-30 1774
1997-09-30 1763
1997-12-31 1762
1998-03-31 1615
1998-06-30 1676
1998-09-30 1704
1998-12-31 1793
1999-03-31 1654
1999-06-30 1495
1999-09-30 1416
1999-12-31 1789
2000-03-31 1484
2000-06-30 1498
2000-09-30 1348
2000-12-31 1441
2001-03-31 1803
2001-06-30 2346
2001-09-30 2597
2001-12-31 2762
2002-03-31 2787
2002-06-30 3167
2002-09-30 2986
2002-12-31 2556
2003-03-31 3051
2003-06-30 3375
2003-09-30 3146
2003-12-31 2986
2004-03-31 2710
2004-06-30 2848
2004-09-30 3294
2004-12-31 2975
2005-03-31 3181
2005-06-30 3213
2005-09-30 3928
2005-12-31 4655
2006-03-31 4628
2006-06-30 5086
2006-09-30 5056
2006-12-31 11801
2007-03-31 5427
2007-06-30 6784
2007-09-30 6348
2007-12-31 8421
2008-03-31 8125
2008-06-30 10702
2008-09-30 11361
2008-12-31 5147
2009-03-31 9712
2009-06-30 3468
2009-09-30 3725
2009-12-31 3571
2010-03-31 4319
2010-06-30 4765
2010-09-30 5851
2010-12-31 5650
2011-03-31 5725
2011-06-30 5705
2011-09-30 3638
2011-12-31 3703
2012-03-31 3687
2012-06-30 3824
2012-09-30 4329
2012-12-31 5111
2013-03-31 4155
2013-06-30 4271
2013-09-30 4047
2013-12-31 4041
2014-03-31 4282
2014-06-30 4236
2014-09-30 4273
2014-12-31 9336
2015-03-31 4378
2015-06-30 3523
2015-09-30 3473
2015-12-31 3318
2016-03-31 3013
2016-06-30 3169
2016-09-30 2955
2016-12-31 3608
2017-03-31 3251
2017-06-30 3044
2017-09-30 3041
2017-12-31 3927
2018-03-31 5003
2018-06-30 3837
2018-09-30 2984
2018-12-31 3781
2019-03-31 3863
2019-06-30 3865
2019-09-30 3722
2019-12-31 2672
2020-03-31 2444
2020-06-30 2748
2020-09-30 2572
2020-12-31 2554
2021-03-31 2361
2021-06-30 2610
2021-09-30 2377
2021-12-31 2389
2022-03-31 2203
2022-06-30 2251
2022-09-30 2035
2022-12-31 2914
2023-03-31 2540
2023-06-30 2766
2023-09-30 2809