78% (2007)

73% (2003)

71% (2006)

73% (2021)

67% (2015)

81% (2013)

70% (2017)

59% (2018)

61% (2005)

82% (1985)

0% (2013)

0% (2003)

50% (1999)

45% (2009)

50% (2009)

76% (2010)

0% (2005)

72% (1988)

75% (2011)

60% (1993)