66% (1997)

58% (2000)

51% (2005)

53% (1998)

50% (2007)

72% (2008)

56% (2009)

67% (2004)

53% (1997)

51% (2000)

60% (2019)

42% (2010)

45% (1997)

10% (2020)

40% (2018)

48% (1994)

56% (2006)

43% (2003)

20% (1993)

36% (2010)