61% (1997)

60% (2000)

55% (2014)

60% (1998)

59% (2000)

56% (2002)

35% (2007)

57% (2003)

56% (2016)

56% (2000)

53% (2017)

50% (2005)

46% (2005)

45% (2008)

50% (2002)

60% (2002)

46% (2018)

54% (2003)

67% (2007)

70% (2009)