51% (2000)

0% (2003)

80% (2015)

0% (1992)

10% (1994)

70% (2002)

0% (1993)

0% (2005)

10% (1998)

55% (2005)

15% (1992)

0% (2020)

60% (1996)

0% (2003)

42% (1993)

48% (2009)

60% (1996)

50% (1994)

47% (2007)

60% (1999)