Quarterly Millions of US Dollars
1972-01-01 20
1972-04-01 40
1972-07-01 40
1972-10-01 40
1973-01-01 40
1973-04-01 40
1973-07-01 40
1973-10-01 40
1974-01-01 40
1974-04-01 40
1974-07-01 49
1974-10-01 49
1975-01-01 49
1975-04-01 49
1975-07-01 49
1975-10-01 49
1976-01-01 49
1976-04-01 49
1976-07-01 49
1976-10-01 63
1977-01-01 63
1977-04-01 63
1977-07-01 88
1977-10-01 88
1978-01-01 182
1978-04-01 186
1978-07-01 260
1978-10-01 281
1979-01-01 333
1979-04-01 330
1979-07-01 327
1979-10-01 321
1980-01-01 316
1980-04-01 311
1980-07-01 339
1980-10-01 343
1981-01-01 338
1981-04-01 330
1981-07-01 327
1981-10-01 332
1982-01-01 306
1982-04-01 303
1982-07-01 274
1982-10-01 286
1983-01-01 275
1983-04-01 274
1983-07-01 276
1983-10-01 278
1984-01-01 262
1984-04-01 255
1984-07-01 251
1984-10-01 248
1985-01-01 248
1985-04-01 249
1985-07-01 266
1985-10-01 241
1986-01-01 257
1986-04-01 271
1986-07-01 281
1986-10-01 262
1987-01-01 278
1987-04-01 276
1987-07-01 250
1987-10-01 289
1988-01-01 190
1988-04-01 180
1988-07-01 178
1988-10-01 188
1989-01-01 180
1989-04-01 170
1989-07-01 173
1989-10-01 170
1990-01-01 159
1990-04-01 163
1990-07-01 150
1990-10-01 134
1991-01-01 130
1991-04-01 132
1991-07-01 137
1991-10-01 145
1992-01-01 137
1992-04-01 144
1992-07-01 151
1992-10-01 145
1993-01-01 113
1993-04-01 123
1993-07-01 123
1993-10-01 116
1994-01-01 9
1994-04-01 9
1994-07-01 9
1994-10-01 9
1995-01-01 9
1995-04-01 9
1995-07-01 9
1995-10-01 9
1996-01-01 9
1996-04-01 9
1996-07-01 3231
1996-10-01 3231
1997-01-01 3731
1997-04-01 3731
1997-07-01 4431
1997-10-01 4431
1998-01-01 4431
1998-04-01 4731
1998-07-01 4731
1998-10-01 4118
1999-01-01 4618
1999-04-01 4618
1999-07-01 4618
1999-10-01 4618
2000-01-01 4618
2000-04-01 4592
2000-07-01 4942
2000-10-01 4942
2001-01-01 5692
2001-04-01 5547
2001-07-01 5504
2001-10-01 5150
2002-01-01 4803
2002-04-01 4803
2002-07-01 4844
2002-10-01 4873
2003-01-01 5041
2003-04-01 5041
2003-07-01 4994
2003-10-01 4994
2004-01-01 5173
2004-04-01 5148
2004-07-01 5139
2004-10-01 5739
2005-01-01 5739
2005-04-01 5739
2005-07-01 5989
2005-10-01 6950
2006-01-01 8313
2006-04-01 7703
2006-07-01 7657
2006-10-01 7657
2007-01-01 7657
2007-04-01 8107
2007-07-01 8107
2007-10-01 8107
2008-01-01 8107
2008-04-01 7742
2008-07-01 7742
2008-10-01 7742
2009-01-01 8065
2009-04-01 8065
2009-07-01 8065
2009-10-01 9065
2010-01-01 9065
2010-04-01 9065
2010-07-01 9065
2010-10-01 9065
2011-01-01 9144
2011-04-01 9158
2011-07-01 9182
2011-10-01 9178
2012-01-01 8998
2012-04-01 9014
2012-07-01 8747
2012-10-01 8694
2013-01-01 8652
2013-04-01 9382
2013-07-01 9388
2013-10-01 9858
2014-01-01 9864
2014-04-01 9872
2014-07-01 11091
2014-10-01 11059
2015-01-01 10838
2015-04-01 10830
2015-07-01 10837
2015-10-01 11286
2016-01-01 12311
2016-04-01 12345
2016-07-01 12351
2016-10-01 12296
2017-01-01 12313
2017-04-01 13734
2017-07-01 13733
2017-10-01 13732
2018-01-01 13754
2018-04-01 14939