66% (1994)

76% (1993)

62% (1990)

67% (1988)

59% (2023)

65% (2007)

67% (2017)

62% (1990)

67% (1996)

69% (1991)

63% (2006)

63% (1995)

74% (1992)

67% (1993)

54% (2005)

52% (2000)

62% (2011)

49% (1999)

63% (2001)

54% (2004)