61% (2003)

62% (1998)

71% (1994)

63% (1993)

58% (2021)

60% (1995)

63% (2000)

58% (2010)

68% (1997)

76% (1996)

73% (2007)

68% (2002)

72% (2008)

71% (1999)

68% (2005)

72% (2003)

60% (1997)

68% (1995)

70% (1998)

67% (1996)