66% (1992)

42% (2003)

48% (1997)

73% (1994)

49% (2016)

55% (1987)

73% (1998)

59% (2011)

74% (1992)

0% (1970)

59% (2002)

70% (2006)

55% (2008)

61% (2003)

70% (2006)

63% (2002)

62% (1988)

63% (1993)

72% (1996)

63% (2001)