43% (2002)

38% (2001)

75% (2007)

51% (2003)

34% (1999)

61% (2003)

70% (2007)

47% (2005)

33% (2004)

42% (2004)

31% (2000)

53% (2006)

54% (2006)

46% (2004)

44% (2006)

43% (2005)

62% (2006)

61% (2010)

40% (2004)

0% (2005)