56% (1991)

51% (2012)

63% (2016)

56% (2013)

58% (2014)

57% (2000)

44% (2015)

55% (2020)

58% (2005)

58% (2009)

60% (2001)

56% (1996)

58% (1993)

49% (2008)

71% (2013)

55% (2005)

65% (2012)

49% (2004)

54% (2013)

64% (1982)