39% (2006)

22% (2008)

60% (2006)

61% (2004)

60% (1996)

67% (2004)

59% (2003)

62% (1999)

66% (1995)

41% (2005)

54% (2004)

53% (2002)

63% (1998)

44% (1990)

57% (2008)

0% (2005)

76% (1997)

35% (2003)

80% (2001)

71% (2003)