69% (2013)

61% (1993)

51% (2006)

74% (2015)

59% (2007)

63% (1996)

43% (2014)

37% (2009)

62% (1992)

63% (1999)

44% (1992)

49% (1995)

64% (2017)

39% (1987)

68% (2000)

74% (2004)

59% (1994)

55% (2007)

58% (2004)

67% (1995)