65% (2019)

59% (2006)

50% (2009)

57% (2016)

69% (2010)

68% (1998)

56% (2004)

59% (2005)

50% (2001)

66% (1961)

47% (2011)

43% (1990)

48% (2016)

60% (2001)

42% (1990)

41% (2007)

59% (2015)

42% (2003)