60% (2010)

0% (2014)

59% (2015)

56% (2007)

0% (2010)

60% (2011)

60% (2010)

0% (2014)

62% (1991)

43% (2005)

55% (1987)

55% (2010)

0% (2002)

0% (1970)

50% (1997)

50% (2004)

57% (1994)

55% (2004)

55% (2010)

0% (2012)