57% (1991)

58% (1998)

46% (1999)

65% (2004)

69% (2009)

79% (1997)

64% (1995)

68% (1994)

59% (1996)

57% (2019)

74% (2002)

69% (2002)

46% (2002)

63% (2006)

62% (1992)

54% (2016)

66% (2006)

53% (2001)

67% (2002)

64% (2018)