67% (2003)

69% (1999)

59% (2001)

55% (1998)

57% (2012)

63% (2002)

56% (2015)

53% (2016)

63% (1999)

52% (2008)

56% (2004)

58% (1996)

62% (2005)

72% (2005)

66% (1997)

65% (2008)

48% (2006)

56% (1996)

59% (2005)

74% (1997)