82% (2023)

86% (1990)

90% (2018)

75% (2019)

72% (2005)

64% (1993)

82% (2003)

55% (1999)

47% (2000)

72% (2012)

87% (2013)

86% (1993)

71% (1982)

68% (2008)

76% (1962)

70% (1976)

64% (2006)

55% (2008)

80% (1994)

0% (2009)