78% (2003)

84% (2005)

75% (1998)

40% (2012)

31% (2018)

60% (2015)

70% (1989)

0% (1990)

95% (1995)

77% (2017)

76% (2010)

0% (1998)

0% (2013)

70% (2007)

0% (1997)

20% (2006)

10% (1999)

82% (2009)

80% (2013)

50% (1953)