51% (2006)

54% (2008)

55% (1996)

52% (2018)

55% (2005)

55% (2014)

53% (2011)

68% (2002)

57% (2013)

53% (1996)

50% (2002)

43% (1999)

60% (2002)

60% (2000)

48% (2005)

54% (1993)

48% (2000)

54% (2015)

47% (1999)

49% (2005)