83% (1995)

67% (1999)

66% (1997)

53% (2004)

68% (1999)

68% (2000)

66% (1997)

67% (1998)

50% (2010)

65% (1996)

67% (1994)

70% (1993)

77% (2005)

64% (2005)

60% (2004)

67% (2008)

63% (2013)

60% (2009)

41% (2001)

73% (2010)