50% (1996)

62% (2014)

57% (1995)

56% (1997)

57% (1991)

55% (1986)

0% (1974)

20% (1982)

71% (2001)

68% (1999)

58% (1976)

31% (1995)

68% (2001)

56% (2001)

60% (1971)

70% (1977)

20% (1982)

0% (1985)

68% (2001)

10% (1982)