76% (1999)

70% (2000)

0% (1977)

71% (1972)

60% (1982)

57% (1973)

66% (1993)

35% (1981)

70% (2021)

73% (2009)

40% (1989)

40% (2003)

64% (1997)

53% (2005)

49% (2004)

0% (2005)

60% (1992)

72% (1971)

55% (1996)

50% (1995)