51% (1990)

14% (2007)

70% (2011)

54% (2013)

46% (2000)

72% (1995)

50% (2012)

70% (2016)

67% (2005)

10% (1999)

0% (2008)

59% (2013)

0% (2007)

0% (2011)

0% (1998)

100% (2004)

0% (2009)

0% (1977)

0% (2000)

0% (2007)