Year,Domestic,Foreign
1980,6.581,2.398
1981,6.209,2.327
1982,5.759,2.224
1983,6.795,2.387
1984,7.952,2.439
1985,8.205,2.838
1986,8.215,3.245
1987,7.081,3.196
1988,7.526,3.004
1989,7.073,2.699
1990,6.897,2.404
1991,6.137,2.038
1992,6.277,1.938
1993,6.742,1.776
1994,7.255,1.735
1995,7.129,1.506