51% (2000)

59% (2010)

51% (1996)

50% (2005)

43% (1994)

40% (2006)

43% (2004)

64% (2002)

60% (2003)

0% (2004)

62% (2000)

35% (1997)

54% (1993)

60% (1997)

43% (2001)

59% (1996)

48% (2005)

55% (1994)

66% (2005)

61% (2015)