71% (2008)

60% (2010)

60% (2009)

69% (2007)

50% (1997)

0% (1998)

0% (1997)

45% (1992)

0% (2001)

65% (2017)

26% (2016)

0% (1998)

67% (2008)

49% (2012)

0% (1999)

85% (2002)

48% (1991)

50% (2009)

57% (2015)

43% (2001)