78% (2023)

42% (2008)

60% (2005)

65% (2006)

61% (2015)

61% (2014)

57% (2007)

62% (2004)

55% (2008)

63% (2006)

50% (2004)

60% (1998)

59% (2015)

62% (2009)

55% (2011)

0% (1970)