75% (2011)

82% (2009)

70% (2015)

30% (1997)

82% (2007)

74% (2016)

67% (2002)

0% (2011)

0% (2001)

70% (2019)

0% (2023)

76% (2007)

60% (2022)

78% (2013)

83% (1991)

73% (1988)

76% (1981)

36% (2010)

60% (1975)

0% (2015)