0% (2006)

71% (2005)

63% (1988)

37% (1980)

49% (2003)

75% (1971)

66% (1993)

60% (1998)

50% (1998)

50% (1969)

80% (1999)

60% (1985)

0% (1974)

66% (1996)

43% (1964)

73% (2001)

70% (2009)

37% (2001)

87% (2018)

48% (1996)