59% (2009)

60% (2009)

49% (2007)

53% (1996)

46% (1991)

20% (2008)

50% (1991)

70% (2007)

80% (1990)

40% (2006)

0% (1999)

59% (1996)

20% (2006)

53% (2005)

0% (1998)

20% (2009)

0% (1996)

0% (2008)

49% (2001)

0% (1995)