- , 19701980 . .
-
-
1970-71
617,141
19,508
3.16
1974-75
627,285
14,985
2.39
1976-77
641,311
12,049
1.88
1978-79
632,037
11,531
1.82
1980-81
631,088
9,911
1.57
