58% (2002)

58% (1996)

60% (1970)

64% (1976)

68% (2001)

36% (1995)

58% (1975)

49% (1996)

53% (1955)

53% (2006)

40% (2000)

35% (1984)

72% (1997)

0% (1993)

10% (1982)

73% (2012)

60% (1971)

56% (2001)

40% (2006)

47% (2002)