45% (2008)

0% (1991)

44% (2007)

50% (2008)

58% (1992)

66% (2009)

35% (1993)

0% (1993)

51% (1987)

49% (2013)

79% (2011)

48% (2009)

48% (2008)

28% (1989)

62% (2005)

72% (2012)

40% (2007)

17% (1994)

46% (2007)

53% (2007)