Quarterly US dollars
1986-09-30 183741
1986-12-31 189807
1987-03-31 198692
1987-06-30 196132
1987-09-30 198738
1987-12-31 213746
1988-03-31 213761
1988-06-30 203906
1988-09-30 198931
1988-12-31 210853
1989-03-31 206389
1989-06-30 203578
1989-09-30 213268
1989-12-31 220475
1990-03-31 229386
1990-06-30 235959
1990-09-30 256048
1990-12-31 261461
1991-03-31 257053
1991-06-30 255874
1991-09-30 277340
1991-12-31 271010
1992-03-31 268970
1992-06-30 284493
1992-09-30 309137
1992-12-31 292035
1993-03-31 313537
1993-06-30 311330
1993-09-30 312716
1993-12-31 323037
1994-03-31 319879
1994-06-30 318421
1994-09-30 324892
1994-12-31 334335
1995-03-31 368823
1995-06-30 379222
1995-09-30 384892
1995-12-31 405806
1996-03-31 419280
1996-06-30 433519
1996-09-30 466610
1996-12-31 476712
1997-03-31 497038
1997-06-30 492807
1997-09-30 497752
1997-12-31 544654
1998-03-31 572859
1998-06-30 621618
1998-09-30 648871
1998-12-31 611819
1999-03-31 597609
1999-06-30 605204
1999-09-30 617044
1999-12-31 613565
2000-03-31 669625
2000-06-30 677605
2000-09-30 705793
2000-12-31 709562
2001-03-31 780167
2001-06-30 779421
2001-09-30 819140
2001-12-31 802022
2002-03-31 835615
2002-06-30 917109
2002-09-30 943692
2002-12-31 939254
2003-03-31 1051326
2003-06-30 1104818
2003-09-30 1171273
2003-12-31 1174752
2004-03-31 1309265
2004-06-30 1281696
2004-09-30 1370873
2004-12-31 1494274
2005-03-31 1584799
2005-06-30 1646453
2005-09-30 1699349
2005-12-31 1667281
2006-03-31 1854082
2006-06-30 1925538
2006-09-30 2053873
2006-12-31 2221220
2007-03-31 2470885
2007-06-30 2667120
2007-09-30 2837643
2007-12-31 2879383
2008-03-31 3012781
2008-06-30 2800922
2008-09-30 2727549
2008-12-31 2284058
2009-03-31 2213015
2009-06-30 2202254
2009-09-30 2268026
2009-12-31 2134736
2010-03-31 2174764
2010-06-30 2055970
2010-09-30 2274507
2010-12-31 2289385
2011-03-31 2414230
2011-06-30 2473692
2011-09-30 2410172
2011-12-31 2321149
2012-03-31 2388900
2012-06-30 2351989
2012-09-30 2345385
2012-12-31 2315209
2013-03-31 2254876
2013-06-30 2210208
2013-09-30 2117696
2013-12-31 2136448
2014-03-31 2210692
2014-06-30 2257510
2014-09-30 2194428
2014-12-31 2154506
2015-03-31 2129485
2015-06-30 2053478
2015-09-30 2094758
2015-12-31 1989038