58% (2005)

62% (2012)

57% (2009)

65% (2016)

63% (2003)

63% (2017)

67% (1996)

59% (2000)

68% (1998)

58% (2006)

56% (2004)

56% (2001)

58% (2003)

59% (2010)

62% (1995)

43% (2001)

56% (2005)

63% (1998)

57% (2007)

62% (2005)