Quarter	Belgian franc
1975-03-31	83.0496
1975-06-30	81.3766
1975-09-30	81.0216
1975-12-31	79.9462
1976-03-31	78.2916
1976-06-30	70.8542
1976-09-30	68.9656
1976-12-31	60.8567
1977-03-31	63.0023
1977-06-30	62.1513
1977-09-30	61.7909
1977-12-31	63.1198
1978-03-31	62.1667
1978-06-30	59.5518
1978-09-30	61.0258
1978-12-31	58.5908
1979-03-31	59.0346
1979-06-30	63.0258
1979-09-30	65.0417
1979-12-31	61.7398
1980-03-31	64.8108
1980-06-30	66.2853
1980-09-30	67.6658
1980-12-31	73.0785
1981-03-31	77.9887
1981-06-30	77.2231
1981-09-30	73.1261
1981-12-31	71.0721
1982-03-31	76.7282
1982-06-30	80.1077
1982-09-30	82.0117
1982-12-31	80.4403
1983-03-31	72.4102
1983-06-30	77.1667
1983-09-30	80.1121
1983-12-31	80.0598
1984-03-31	79.2273
1984-06-30	77.1436
1984-09-30	76.5166
1984-12-31	74.9424
1985-03-31	72.783
1985-06-30	78.0789
1985-09-30	79.1786
1985-12-31	75.3206
1986-03-31	69.1795
1986-06-30	69.1203
1986-09-30	64.2343
1986-12-31	59.5971
1987-03-31	58.7891
1987-06-30	61.4439
1987-09-30	61.7379
1987-12-31	62.4589
1988-03-31	63.0062
1988-06-30	65.6951
1988-09-30	66.2974
1988-12-31	66.5589
1989-03-31	67.7287
1989-06-30	65.7198
1989-09-30	64.2631
1989-12-31	60.4169
1990-03-31	58.4357
1990-06-30	57.9687
1990-09-30	60.9932
1990-12-31	60.3017
1991-03-31	60.1459
1991-06-30	60.9141
1991-09-30	60.4601
1991-12-31	59.4115
1992-03-31	58.9838
1992-06-30	59.9997
1992-09-30	57.407
1992-12-31	50.3133
1993-03-31	49.7238
1993-06-30	51.0859
1993-09-30	53.2309
1993-12-31	53.5015
1994-03-31	52.9385
1994-06-30	51.4127
1994-09-30	49.8653
1994-12-31	50.3045
1995-03-31	48.1604
1995-06-30	45.8582
1995-09-30	46.3055
1995-12-31	45.6775
1996-03-31	46.2153
1996-06-30	47.6984
1996-09-30	47.9509
1996-12-31	51.5728
1997-03-31	55.7036
1997-06-30	57.8538
1997-09-30	60.5918
1997-12-31	60.1018
1998-03-31	61.7915
1998-06-30	61.1797
1998-09-30	60.0478
1998-12-31	57.4688
1999-03-31	58.7897
1999-06-30	61.3541
1999-09-30	61.6043
1999-12-31	63.3837
2000-03-31	65.6955
2000-06-30	66.1511
2000-09-30	65.898
2000-12-31	67.2486
2001-03-31	63.7874
2001-06-30	65.6728
2001-09-30	65.1562
2001-12-31	64.9903