63% (1996)

67% (1982)

66% (2007)

55% (1988)

71% (1994)

63% (2012)

72% (2005)

53% (2012)

65% (1995)

56% (2012)

58% (2015)

69% (1984)

63% (1997)

54% (1997)

61% (1991)

66% (1985)

61% (1986)

45% (2002)

0% (1970)

60% (1990)