32% (1998)

39% (1994)

36% (2009)

46% (2007)

44% (1999)

38% (1993)

28% (1988)

28% (1999)

46% (2000)

27% (2001)

48% (1990)

35% (2005)

58% (2014)

51% (2001)

53% (2009)

38% (1997)

35% (1998)

39% (1997)

60% (2008)

54% (1998)