67% (2023)

54% (2011)

57% (1993)

59% (2018)

63% (2008)

57% (2005)

57% (1991)

70% (1968)

66% (2005)

67% (2014)

69% (2012)

37% (1995)

55% (2024)

57% (1996)

63% (2017)

65% (2013)

58% (2003)

67% (2015)

66% (2009)

70% (2023)