62% (1973)

70% (2007)

68% (2018)

37% (2000)

59% (2010)

55% (2002)

53% (2016)

48% (1995)

53% (1984)

70% (2003)

56% (2013)

67% (2009)

58% (1963)

62% (1998)

70% (2001)

58% (1960)

57% (2018)

66% (2010)

57% (1998)

62% (2001)