42% (2007)

53% (2008)

71% (2003)

60% (2003)

83% (1986)

70% (2001)

70% (2001)

70% (2000)

50% (1999)

70% (2005)

90% (2001)

20% (2010)

50% (2011)

0% (1998)

0% (2003)

10% (2005)

40% (1999)

50% (2001)

0% (1999)

70% (1997)