59% (2009)

59% (2009)

49% (2007)

53% (1996)

54% (1991)

49% (2001)

20% (2008)

40% (2006)

70% (2007)

59% (1996)

0% (1999)

52% (2005)

80% (1990)

20% (2009)

0% (1998)

0% (2008)

45% (1992)

44% (2005)

0% (1992)

20% (2006)