55% (1999)

62% (2001)

49% (2004)

54% (1999)

56% (2017)

58% (2007)

50% (1988)

59% (2002)

56% (2010)

44% (1981)

52% (2013)

48% (1991)

48% (2010)

53% (1996)

0% (2017)

40% (1988)

60% (1960)

50% (1979)

70% (2016)