36% (2003)

48% (2008)

57% (1991)

49% (2017)

48% (1993)

52% (1994)

53% (1992)

48% (1994)

50% (1991)

55% (1994)

48% (1993)

58% (1992)

44% (1996)

40% (1993)

46% (2010)

50% (1992)

49% (1990)

40% (2013)

48% (1997)

40% (2000)