74% (2007)

49% (1997)

59% (2002)

61% (2005)

46% (1982)

64% (1992)

80% (2005)

0% (1997)

40% (2005)

0% (1976)

0% (2002)

0% (2025)

0% (2002)

70% (1996)

0% (2006)

0% (1998)

78% (1994)

42% (2009)

0% (2009)

52% (2005)