67% (2018)

79% (2004)

74% (1997)

67% (2015)

71% (2014)

61% (2012)

71% (2005)

71% (2017)

69% (2012)

66% (1999)

57% (2012)

70% (2021)

58% (2019)

45% (1988)

56% (2020)

66% (2013)

66% (1994)

71% (2009)

65% (2018)

72% (2016)