58% (1999)

55% (1988)

36% (2011)

51% (1986)

50% (2017)

46% (2012)

49% (2016)

40% (1989)

44% (1994)

41% (1985)

59% (1991)

57% (2003)

49% (2002)

46% (2014)

47% (2001)

51% (1995)

46% (1992)

54% (2003)

48% (2015)

49% (2015)