61% (1972)

47% (2009)

78% (2015)

71% (2017)

79% (2013)

70% (2013)

60% (2014)

67% (2015)

60% (2006)

75% (1999)

69% (2018)

78% (2018)

91% (2008)

0% (2007)

90% (2009)

30% (2004)

46% (2012)

55% (2012)

50% (2016)

0% (2008)