77% (2005)

68% (2011)

69% (1991)

64% (1992)

59% (2003)

65% (1987)

67% (2007)

77% (2007)

0% (2002)

0% (1994)

43% (1982)

71% (2000)

0% (1968)

60% (2003)

76% (1999)

0% (1975)

65% (2008)

80% (2021)

69% (1983)

69% (2010)