68% (1980)

67% (2000)

65% (2008)

75% (2011)

73% (2020)

10% (2007)

76% (1987)

50% (1995)

65% (1999)

0% (1970)

80% (2005)

75% (2009)

33% (2011)

63% (2006)

55% (2021)

63% (2006)

40% (1987)

58% (1988)

60% (1979)

74% (1993)