Year lending rate minus deposit rate, % 1968 3.5 1969 3.5 1970 3 1971 3 1972 3 1973 3 1974 3 1975 3 1976 3 1977 3 1978 3 1979 3 1980 1.875 1981 1.5 1982 1.5 1983 1.5 1984 1.5 1985 1.5 1986 1.5 1987 1.5 1988 1.5 1989 1.5 1990 1.5 1991 1.5 1992 1.5 1993 1.5 1999 3.79166666666667 2000 4 2001 4 2002 4 2003 4 2004 4 2005 4 2006 3.8333333333333304 2007 3.5 2008 3.5 2009 3.5 2010 3.5 2011 3.5 2012 3.5 2013 3.5 2014 3.5