54% (1997)

52% (2008)

78% (1981)

53% (2015)

43% (1995)

55% (1978)

64% (2002)

80% (1999)

88% (2014)

67% (2009)

73% (2013)

75% (1975)

61% (1983)

56% (1994)

85% (1963)

10% (2001)

0% (2018)

59% (2008)

75% (1969)

78% (1995)