73% (1989)

60% (1967)

52% (1991)

57% (1978)

0% (1985)

0% (1988)

0% (1966)

50% (1985)

30% (2007)

0% (1960)

10% (2008)

30% (2009)

0% (1990)

0% (1986)

0% (1949)

69% (2001)

55% (1999)

38% (1992)

70% (2018)

50% (1970)