Quarterly US dollars
1986-09-30 261000
1986-12-31 281000
1987-03-31 297000
1987-06-30 302000
1987-09-30 319000
1987-12-31 342000
1988-03-31 340000
1988-06-30 330000
1988-09-30 347000
1988-12-31 351000
1989-03-31 343000
1989-06-30 323000
1989-09-30 342000
1989-12-31 349000
1990-03-31 333000
1990-06-30 329000
1990-09-30 353000
1990-12-31 363000
1991-03-31 317000
1991-06-30 306000
1991-09-30 301000
1991-12-31 305000
1992-03-31 268000
1992-06-30 266000
1992-09-30 258000
1992-12-31 248000
1993-03-31 228000
1993-06-30 223000
1993-09-30 227000
1993-12-31 245000
1994-03-31 239000
1994-06-30 245000
1994-09-30 254000
1994-12-31 266000
1995-03-31 266000
1995-06-30 259000
1995-09-30 253000
1995-12-31 243000
1996-03-31 221000
1996-06-30 215000
1996-09-30 210000
1996-12-31 213000
1997-03-31 215000
1997-06-30 220000
1997-09-30 211000
1997-12-31 204000
1998-03-31 177000
1998-06-30 164000
1998-09-30 165000
1998-12-31 158000
1999-03-31 138089
1999-06-30 124740
1999-09-30 132521
1999-12-31 133076
2000-03-31 137419
2000-06-30 152033
2000-09-30 147271
2000-12-31 164202
2001-03-31 164012
2001-06-30 160842
2001-09-30 166431
2001-12-31 149884
2002-03-31 133554
2002-06-30 138539
2002-09-30 148672
2002-12-31 175219
2003-03-31 146754
2003-06-30 146725
2003-09-30 138800
2003-12-31 138203
2004-03-31 147466
2004-06-30 139851
2004-09-30 153736
2004-12-31 156706
2005-03-31 124891
2005-06-30 153762
2005-09-30 152269
2005-12-31 151413
2006-03-31 138964
2006-06-30 150585
2006-09-30 149649
2006-12-31 144533
2007-03-31 152435
2007-06-30 171139
2007-09-30 173614
2007-12-31 198047
2008-03-31 198705
2008-06-30 203293
2008-09-30 187230
2008-12-31 194877
2009-03-31 169626
2009-06-30 216696
2009-09-30 216096
2009-12-31 203255
2010-03-31 187108
2010-06-30 176340
2010-09-30 186518
2010-12-31 181407
2011-03-31 196867
2011-06-30 201785
2011-09-30 201778
2011-12-31 216651
2012-03-31 226933
2012-06-30 237809
2012-09-30 256210
2012-12-31 268842
2013-03-31 279596
2013-06-30 260973
2013-09-30 274589
2013-12-31 277492
2014-03-31 259825
2014-06-30 271407
2014-09-30 245755
2014-12-31 266364
2015-03-31 241554
2015-06-30 251320
2015-09-30 261478
2015-12-31 285014
2016-03-31 268343
2016-06-30 290536
2016-09-30 295473
2016-12-31 284986
2017-03-31 289124
2017-06-30 285749
2017-09-30 306334
2017-12-31 318336
2018-03-31 327944
2018-06-30 307508
2018-09-30 314267
2018-12-31 328518
2019-03-31 322574
2019-06-30 327298
2019-09-30 321635
2019-12-31 334407
2020-03-31 337793
2020-06-30 322759
2020-09-30 329391
2020-12-31 352434
2021-03-31 336212
2021-06-30 345561
2021-09-30 325866
2021-12-31 335608
2022-03-31 336003
2022-06-30 327500
2022-09-30 330275
2022-12-31 350676
2023-03-31 318137
2023-06-30 307884
2023-09-30 317898