67% (1971)

45% (2013)

0% (1997)

66% (1992)

80% (2012)

64% (2020)

0% (2010)

68% (1997)

0% (2002)

0% (1969)

74% (2001)

40% (2005)

78% (2006)

40% (2011)

0% (1993)

90% (2018)

0% (2011)

10% (2010)

85% (2017)

72% (2003)