60% (2007)

40% (2009)

66% (1985)

62% (1971)

57% (1974)

60% (2002)

57% (1985)

51% (2008)

60% (1981)

20% (1991)

55% (2018)

57% (1979)

50% (2003)

58% (1975)

20% (1970)

68% (1978)

60% (1973)

20% (1981)

49% (1990)

71% (1984)