50% (2006)

59% (2007)

62% (1996)

62% (1992)

43% (2014)

74% (2015)

69% (2013)

59% (1993)

49% (1995)

68% (2000)

64% (2017)

63% (2001)

36% (2009)

67% (1995)

60% (1994)

59% (2004)

76% (2004)

44% (1992)

33% (1989)

62% (1999)