52% (2013)

63% (1996)

70% (1995)

72% (2015)

55% (1999)

48% (2001)

58% (2002)

59% (1995)

58% (2011)

35% (1996)

71% (2000)

70% (2009)

60% (2001)

70% (2004)

62% (2005)

40% (2006)

51% (1996)

60% (2003)

35% (1997)

53% (2000)