59% (2002)

70% (1996)

66% (1988)

75% (1997)

61% (1988)

55% (2013)

55% (1991)

54% (2004)

61% (1998)

50% (1999)

60% (1992)

68% (1986)

58% (1982)

57% (2015)

66% (2018)

61% (2005)

33% (1992)

67% (1981)

60% (1998)

70% (1994)