73% (2003)

70% (1993)

66% (1993)

71% (1992)

72% (2002)

57% (1993)

47% (1998)

70% (2003)

0% (1992)

70% (1995)

54% (2005)

30% (2003)

60% (2004)

45% (1991)

57% (1973)

54% (2002)

90% (1982)

50% (1995)

80% (2015)

60% (1983)