62% (1992)

62% (1996)

51% (2006)

59% (1993)

59% (2007)

44% (2014)

49% (1995)

74% (2015)

69% (2013)

67% (2000)

37% (2009)

44% (1992)

59% (1994)

58% (2004)

76% (2004)

62% (1999)

41% (1991)

63% (2017)

67% (1995)

39% (1987)