54% (2000)

40% (2002)

49% (2002)

48% (1994)

49% (1994)

49% (1987)

50% (2009)

46% (2008)

46% (2016)

56% (1994)

58% (1999)

60% (1998)

60% (1989)

52% (2003)

40% (1994)

56% (1987)

47% (2016)

44% (2008)

51% (1986)

41% (1987)