1937-25%

1938-0%

1939-0%

1940-0%

1941-20%

1942-13%

1943-0%

1944-0%

1945-30%

1946-18%

1947-5%

1948-11%

1949-7%

1950-0%

1951-17%

1952-10%

1953-25%

1954-7%

1955-9%

1956-8%

1957-10%

1958-8%

1959-7%

1960-7%

1961-14%

1962-14%

1963-5%

1964-10%

1965-7%

1966-13%

1967-14%

1968-3%

1969-14%

1970-11%

1971-10%

1972-9%

1973-5%

1974-8%

1975-3%

1976-9%

1977-9%

1978-4%

1979-12%

1980-13%

1981-6%

1982-13%

1983-0%

1984-0%

1985-20%

1986-11%

1987-8%

1988-15%

1989-15%

1990-9%

1991-15%

1992-21%

1993-8%

1994-19%

1995-14%

1996-4%

1997-14%

1998-4%

1999-0%

2000-2%

2001-5%

2002-0%

2003-5%

2004-2%

2005-2%

2006-4%

2007-0%

2008-6%

2009-4%

2010-2%

2011-0%

2012-0%