50% (2008)

35% (2001)

0% (1973)

59% (2015)

0% (2009)

48% (2003)

35% (1989)

10% (2004)

50% (2005)

25% (2006)

64% (2010)

0% (2013)

55% (2019)

60% (2012)

47% (2013)

65% (2013)

51% (2007)

60% (2007)

55% (2001)

65% (1999)