35% (1999)

59% (1987)

35% (1989)

30% (1984)

0% (1970)

72% (2013)

10% (1996)

40% (1992)

38% (1989)

67% (1990)

59% (1982)

47% (1998)

62% (2000)

0% (1982)

58% (1991)

60% (1978)

0% (1988)

30% (1986)

50% (1995)

0% (1970)