Quarterly Millions of US Dollars
1972-01-01 35
1972-04-01 35
1972-07-01 53
1972-10-01 53
1973-01-01 85
1973-04-01 129
1973-07-01 138
1973-10-01 126
1974-01-01 146
1974-04-01 146
1974-07-01 144
1974-10-01 192
1975-01-01 269
1975-04-01 356
1975-07-01 499
1975-10-01 838
1976-01-01 1122
1976-04-01 1337
1976-07-01 1500
1976-10-01 1665
1977-01-01 2222
1977-04-01 2610
1977-07-01 2770
1977-10-01 3374
1978-01-01 4065
1978-04-01 4554
1978-07-01 4862
1978-10-01 5360
1979-01-01 5618
1979-04-01 5924
1979-07-01 6250
1979-10-01 6232
1980-01-01 5991
1980-04-01 6443
1980-07-01 6301
1980-10-01 5699
1981-01-01 5218
1981-04-01 4689
1981-07-01 4705
1981-10-01 4854
1982-01-01 4099
1982-04-01 3656
1982-07-01 3537
1982-10-01 3436
1983-01-01 2925
1983-04-01 2425
1983-07-01 2405
1983-10-01 2045
1984-01-01 1988
1984-04-01 1665
1984-07-01 1498
1984-10-01 1415
1985-01-01 1304
1985-04-01 1299
1985-07-01 1438
1985-10-01 1323
1986-01-01 1421
1986-04-01 1493
1986-07-01 2094
1986-10-01 2550
1987-01-01 2771
1987-04-01 3511
1987-07-01 3339
1987-10-01 3552
1988-01-01 3940
1988-04-01 4078
1988-07-01 3944
1988-10-01 4115
1989-01-01 4276
1989-04-01 4108
1989-07-01 4188
1989-10-01 4183
1990-01-01 4056
1990-04-01 4040
1990-07-01 4265
1990-10-01 4216
1991-01-01 3834
1991-04-01 3780
1991-07-01 4643
1991-10-01 5405
1992-01-01 6502
1992-04-01 8125
1992-07-01 8291
1992-10-01 7940
1993-01-01 8135
1993-04-01 9972
1993-07-01 9963
1993-10-01 9564
1994-01-01 9434
1994-04-01 9570
1994-07-01 9734
1994-10-01 9610
1995-01-01 10289
1995-04-01 9791
1995-07-01 9314
1995-10-01 9192
1996-01-01 8993
1996-04-01 8848
1996-07-01 7560
1996-10-01 6438
1997-01-01 4221
1997-04-01 3003
1997-07-01 2984
1997-10-01 2922
1998-01-01 2412
1998-04-01 1089
1998-07-01 1060
1998-10-01 724
1999-01-01 697
1999-04-01 708
1999-07-01 711
1999-10-01 716
2000-01-01 716
2000-04-01 706
2000-07-01 698
2000-10-01 700
2001-01-01 676
2001-04-01 692
2001-07-01 675
2001-10-01 670
2002-01-01 670
2002-04-01 699
2002-07-01 675
2002-10-01 475