55% (1986)

66% (1992)

73% (2010)

86% (2005)

61% (1986)

82% (2005)

43% (1975)

59% (1999)

0% (2017)

55% (1994)

53% (1985)

43% (1980)

60% (1990)

54% (1996)

55% (1978)

54% (2003)

57% (1973)

49% (1974)

56% (2011)

65% (1978)