74% (1993)

67% (2015)

63% (2020)

30% (1987)

67% (2018)

62% (1978)

73% (1987)

57% (1990)

44% (1971)

68% (1971)

60% (2010)

0% (1999)

68% (1997)

60% (1997)

0% (1956)

50% (2006)

0% (1998)

80% (1997)

65% (1982)

70% (2001)