50% (1994)

46% (2009)

62% (2006)

64% (1989)

62% (1995)

59% (2001)

58% (1998)

75% (1981)

58% (1983)

69% (1992)

64% (2001)

50% (2001)

68% (2004)

54% (2003)

57% (2016)

69% (1982)

57% (2006)

60% (1994)

57% (1996)

53% (2013)