52% (1997)

53% (2000)

51% (1996)

43% (2004)

68% (1995)

46% (2012)

35% (1995)

67% (2005)

55% (2004)

59% (2003)

50% (1995)

63% (2014)

43% (2001)

62% (2005)

52% (1999)

61% (2015)

20% (2000)

55% (1994)

58% (2002)

40% (2006)