52% (2013)

25% (2000)

62% (2005)

59% (2006)

51% (1999)

45% (1983)

45% (2009)

51% (1998)

48% (1998)

61% (1997)

56% (1983)

58% (1995)

45% (1994)

47% (2007)

47% (2006)

54% (1999)

55% (1997)

56% (1998)

38% (1996)

67% (1998)