Quarterly US dollars
1986-09-30 753
1986-12-31 692
1987-03-31 741
1987-06-30 653
1987-09-30 688
1987-12-31 734
1988-03-31 752
1988-06-30 826
1988-09-30 847
1988-12-31 830
1989-03-31 893
1989-06-30 859
1989-09-30 952
1989-12-31 906
1990-03-31 996
1990-06-30 976
1990-09-30 1076
1990-12-31 998
1991-03-31 955
1991-06-30 1045
1991-09-30 1089
1991-12-31 1044
1992-03-31 1047
1992-06-30 1093
1992-09-30 947
1992-12-31 880
1993-03-31 965
1993-06-30 827
1993-09-30 743
1993-12-31 711
1994-03-31 619
1994-06-30 569
1994-09-30 573
1994-12-31 522
1995-03-31 535
1995-06-30 491
1995-09-30 471
1995-12-31 440
1996-03-31 421
1996-06-30 452
1996-09-30 460
1996-12-31 453
1997-03-31 443
1997-06-30 462
1997-09-30 428
1997-12-31 607
1998-03-31 413
1998-06-30 401
1998-09-30 391
1998-12-31 397
1999-03-31 425
1999-06-30 386
1999-09-30 414
1999-12-31 356
2000-03-31 456
2000-06-30 385
2000-09-30 372
2000-12-31 354
2001-03-31 417
2001-06-30 354
2001-09-30 377
2001-12-31 314
2002-03-31 319
2002-06-30 265
2002-09-30 257
2002-12-31 259
2003-03-31 247
2003-06-30 299
2003-09-30 272
2003-12-31 287
2004-03-31 328
2004-06-30 313
2004-09-30 354
2004-12-31 384
2005-03-31 388
2005-06-30 406
2005-09-30 365
2005-12-31 369
2006-03-31 384
2006-06-30 412
2006-09-30 439
2006-12-31 385
2007-03-31 369
2007-06-30 364
2007-09-30 405
2007-12-31 339
2008-03-31 385
2008-06-30 501
2008-09-30 475
2008-12-31 384
2009-03-31 314
2009-06-30 336
2009-09-30 425
2009-12-31 415
2010-03-31 403
2010-06-30 397
2010-09-30 442
2010-12-31 595
2011-03-31 475
2011-06-30 507
2011-09-30 301
2011-12-31 294
2012-03-31 463
2012-06-30 502
2012-09-30 435
2012-12-31 466
2013-03-31 413
2013-06-30 381
2013-09-30 365
2013-12-31 344
2014-03-31 527
2014-06-30 334
2014-09-30 329
2014-12-31 167
2015-03-31 142
2015-06-30 98
2015-09-30 53
2015-12-31 71
2016-03-31 56
2016-06-30 50
2016-09-30 45
2016-12-31 45
2017-03-31 42
2017-06-30 43
2017-09-30 39
2017-12-31 44
2018-03-31 58
2018-06-30 86
2018-09-30 61
2018-12-31 49
2019-03-31 61
2019-06-30 66
2019-09-30 79
2019-12-31 86
2020-03-31 90
2020-06-30 82
2020-09-30 79
2020-12-31 50
2021-03-31 162
2021-06-30 173
2021-09-30 243
2021-12-31 319
2022-03-31 339
2022-06-30 404
2022-09-30 406
2022-12-31 422
2023-03-31 456
2023-06-30 474
2023-09-30 488