78% (2021)

60% (2020)

67% (2018)

58% (2014)

72% (2014)

74% (2012)

65% (2012)

60% (1999)

80% (1999)

53% (2003)

77% (1985)

66% (2018)

49% (2016)

61% (2016)

53% (2014)

54% (2013)

72% (2005)

64% (2002)

58% (1995)

73% (1995)