Year
.
1969
48 600
48 480
1970
46 500
45 140
1971
42 800
37 111
1972
37 200
2400
1973
34 100
32 500
1974
33 000
26 038
1975
3200
26 535
1976
34 900a
26 584
1977
226 000
26 584
1978
283 000
27 931
a Includes $7 000 000 for the transition quarter.