68% (1995)

55% (1980)

66% (1986)

72% (1990)

55% (1982)

42% (1993)

66% (1984)

51% (1994)

77% (1983)

51% (2008)

0% (1998)

71% (1996)

58% (1981)

59% (1992)

45% (2008)

30% (1981)

44% (1995)

70% (1980)

20% (1983)

51% (1993)