58% (1991)

60% (2001)

59% (2013)

56% (2006)

0% (1970)

48% (2000)

55% (1998)

30% (1994)

56% (2009)

78% (2019)

53% (2007)

61% (2006)

56% (2013)

69% (1992)

53% (2002)

33% (2000)

44% (2011)

55% (2018)

58% (2009)

61% (2014)