56% (2005)

51% (1997)

55% (2001)

64% (1999)

32% (2000)

46% (2001)

60% (1997)

47% (1997)

61% (2000)

64% (1997)

35% (2001)

44% (1993)

61% (2009)

46% (2000)

43% (1975)

58% (1999)

49% (1996)

57% (1995)

35% (1996)

42% (2018)