74% (2005)

65% (1995)

62% (1993)

72% (1968)

65% (2009)

73% (2019)

66% (1975)

70% (2012)

59% (2004)

57% (1999)

57% (1998)

71% (2006)

69% (2004)

62% (2020)

73% (1996)

51% (2012)

66% (2019)

69% (2007)

73% (1994)

70% (1983)