A given year

Merge cells (%)

Privately owned

State-run

Public-private partnership

Cooperative camp

1952

92.22

5.21

2.57

1953

84.51

5.22

5.84

4.43

1954

57.16

5.85

22.91

14.08

1955

28.75

6.15

43.85

21.25

1956

10.74

58.4

30.86