58% (2005)

65% (2016)

63% (2017)

63% (2003)

56% (2004)

68% (1998)

59% (2006)

62% (2012)

56% (2001)

59% (2010)

59% (2000)

66% (1996)

58% (2009)

58% (2003)

62% (1995)

47% (1995)

62% (1994)

63% (1998)

57% (2007)

51% (2010)