60% (1976)

45% (2003)

54% (1997)

80% (1999)

51% (2008)

62% (1998)

46% (1981)

65% (2002)

53% (2012)

38% (2005)

72% (1994)

70% (2013)

55% (1981)

72% (1994)

65% (2024)

0% (1963)

0% (2012)

69% (1996)

60% (1994)

32% (1997)