52% (2012)

65% (2000)

44% (2009)

55% (1991)

67% (2000)

34% (1995)

49% (2001)

65% (1987)

49% (2008)

62% (2000)

63% (1998)

50% (1988)

55% (2005)

50% (2000)

52% (2002)

68% (1992)

0% (1999)

65% (1992)

73% (2004)

75% (1999)