YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1951 1.5 0.9 -0.1 -0.3 -0.7 0.2 -1.0 -0.2 -1.1 -1.0 -0.8 -0.7 1952 -0.9 -0.6 0.5 -0.2 0.8 0.7 0.5 0.1 -0.2 0.4 0.0 -1.2 1953 0.3 -0.5 -0.2 0.2 -1.7 0.1 0.0 -1.2 -1.2 0.1 -0.3 -0.5 1954 0.7 -0.3 0.3 0.6 0.5 0.1 0.4 1.1 0.2 0.3 0.1 1.4 1955 -0.5 1.9 0.6 -0.1 1.0 1.3 1.6 1.5 1.3 1.5 1.2 1.0 1956 1.3 1.6 1.3 0.9 1.4 1.1 1.1 1.2 0.1 1.8 0.2 1.1 1957 0.6 -0.1 0.2 0.2 -0.7 0.2 0.2 -0.5 -0.9 0.0 -1.0 -0.3 1958 -1.9 -0.5 0.3 0.4 -0.5 0.3 0.4 0.9 -0.3 0.1 -0.4 -0.6 1959 -0.9 -1.4 1.3 0.4 0.5 -0.1 -0.3 -0.1 0.0 0.5 0.9 0.9 1960 0.1 0.1 1.0 0.8 0.5 0.1 0.5 0.8 0.7 0.1 0.5 0.8 1961 -0.3 0.9 -1.8 0.8 0.3 0.1 0.2 0.2 0.1 -0.3 0.5 1.5 1962 2.0 -0.3 0.1 0.2 1.1 0.7 0.1 0.6 0.4 1.0 0.3 0.2 1963 1.0 0.6 1.1 0.8 0.4 -0.5 -0.1 0.0 -0.6 -1.2 -0.8 -1.2 1964 -0.4 0.0 1.1 1.1 0.2 0.8 0.6 1.5 1.3 1.3 0.2 -0.3 1965 -0.4 0.4 0.8 -0.5 0.2 -0.6 -1.8 -0.7 -1.3 -0.9 -1.5 0.2 1966 -1.3 -0.2 -0.9 -0.2 -0.4 0.3 0.1 0.6 -0.2 -0.1 0.0 -0.3 1967 1.7 1.7 1.2 0.0 0.0 0.6 0.2 0.7 0.5 0.1 -0.4 -0.6 1968 0.5 1.3 0.1 0.0 1.2 1.1 0.7 0.3 -0.3 -0.1 -0.3 0.2 1969 -1.5 -0.5 0.4 -0.4 -0.2 0.2 -0.5 -0.1 -1.0 -0.9 -0.1 0.4 1970 -1.1 -1.0 0.6 -0.1 0.4 1.0 -0.4 0.6 1.2 1.0 1.6 1.9 1971 0.4 2.0 2.3 1.7 0.9 0.4 0.2 1.5 1.4 1.7 0.5 0.3 1972 0.5 1.1 0.6 -0.1 -1.6 -0.5 -1.4 -0.5 -1.4 -0.9 -0.3 -1.3 1973 -0.3 -1.4 0.7 0.1 0.4 1.1 0.6 1.3 1.2 0.8 2.6 1.8 1974 2.4 2.1 2.4 0.9 1.0 0.4 1.1 0.8 1.1 0.9 -0.1 0.2 1975 -0.5 0.8 1.6 1.2 0.6 1.3 1.9 2.0 2.1 1.7 1.2 2.1 1976 1.4 1.7 1.7 0.3 0.4 0.3 -0.9 -0.8 -1.1 0.4 0.7 -0.3 1977 -0.4 1.2 -0.5 -0.4 -0.5 -0.9 -1.1 -0.8 -0.8 -1.0 -1.3 -1.1 1978 -0.3 -2.7 -0.2 -0.3 1.4 0.7 0.6 0.4 0.1 -0.4 0.0 -0.1 1979 -0.4 1.0 0.1 -0.1 0.5 0.6 1.3 -0.2 0.1 -0.1 -0.4 -0.7 1980 0.4 0.3 -0.4 -0.6 0.0 0.0 0.0 0.4 -0.5 0.0 -0.3 -0.1 1981 0.4 -0.2 -1.3 -0.1 0.8 1.2 0.8 0.7 0.3 -0.4 0.2 0.5 1982 1.2 0.3 0.6 0.1 -0.3 -1.0 -1.5 -1.7 -1.7 -1.7 -2.6 -2.2 1983 -3.5 -3.6 -2.4 -0.9 0.6 0.0 -0.6 0.1 0.9 0.4 -0.1 0.0 1984 0.2 0.9 -0.2 0.3 0.2 -0.3 0.2 0.4 0.1 -0.3 0.3 -0.1 1985 -0.3 1.2 0.8 1.2 0.4 -0.4 -0.1 1.0 0.0 -0.4 -0.2 0.2 1986 1.0 -1.0 0.5 0.3 -0.2 1.0 0.3 -0.4 -0.5 0.6 -1.2 -1.4 1987 -0.7 -1.2 -1.3 -1.4 -1.3 -1.1 -1.4 -0.9 -1.0 -0.4 0.0 -0.5 1988 -0.1 -0.4 0.6 0.1 0.9 0.1 1.0 1.5 1.8 1.4 1.7 1.2 1989 1.5 1.2 1.1 1.6 1.2 0.7 0.9 -0.3 0.5 0.8 -0.2 -0.5 1990 -0.1 -1.8 -0.4 0.2 1.2 0.3 0.5 -0.2 -0.7 0.3 -0.5 -0.2 1991 0.6 0.3 -0.7 -0.6 -1.0 -0.1 0.0 -0.4 -1.5 -1.0 -0.7 -1.8 1992 -2.9 -0.9 -2.0 -1.0 0.3 -0.6 -0.6 0.4 0.1 -1.4 -0.7 -0.6 1993 -0.9 -0.7 -0.5 -1.2 -0.3 -0.8 -0.8 -0.9 -0.7 -1.1 -0.1 0.2 1994 -0.1 0.3 -0.7 -1.3 -0.7 -0.4 -1.3 -1.2 -1.6 -1.1 -0.6 -1.2 1995 -0.4 -0.1 0.8 -0.7 -0.4 0.1 0.4 0.3 0.3 0.0 0.0 -0.5 1996 1.0 0.3 1.1 0.8 0.3 1.2 0.7 0.7 0.6 0.6 -0.1 0.9 1997 0.5 1.7 -0.4 -0.6 -1.3 -1.4 -0.8 -1.4 -1.4 -1.5 -1.2 -1.0 1998 -2.7 -2.0 -2.4 -1.4 0.3 1.0 1.2 1.2 1.0 1.1 1.0 1.4 1999 1.8 1.0 1.3 1.4 0.2 0.3 0.5 0.4 -0.1 1.0 1.0 1.4 2000 0.7 1.7 1.3 1.2 0.4 -0.2 -0.2 0.7 0.9 1.1 1.8 0.8 2001 1.0 1.7 0.9 0.2 -0.5 0.3 -0.2 -0.4 0.2 0.0 0.7 -0.8 2002 0.4 1.1 -0.2 -0.1 -0.8 -0.2 -0.5 -1.0 -0.6 -0.4 -0.5 -1.1 2003 -0.2 -0.7 -0.3 -0.1 -0.3 -0.6 0.3 0.1 -0.1 0.0 -0.3 1.1 2004 -1.3 1.2 0.4 -0.9 1.0 -0.8 -0.5 -0.3 -0.3 -0.1 -0.7 -0.8 2005 0.3 -3.1 0.3 -0.6 -0.8 0.4 0.2 -0.3 0.4 1.2 -0.2 0.0 2006 1.7 0.1 1.8 1.1 -0.5 -0.2 -0.6 -1.0 -0.6 -1.3 0.1 -0.3 2007 -0.8 -0.1 0.2 -0.1 -0.1 0.5 -0.3 0.4 0.2 0.7 0.9 1.7 2008 1.8 2.6 1.4 0.7 -0.1 0.6 0.3 1.0 1.2 1.3 1.3 1.4 2009 1.1 1.9 0.4 0.8 -0.1 0.1 0.2 -0.2 0.3 -1.2 -0.6 -0.7 2010 -1.1 -1.5 -0.7 1.2 0.9 0.4 1.8 1.8 2.2 1.7 1.3 2.9 2011 2.3 2.7 2.5 1.9 0.4 0.2 1.0 0.4 1.0 0.8 1.1 2.5 2012 1.1 0.5 0.7 -0.3 0.0 -0.4 0.0 -0.2 0.2 0.3 0.3 -0.6 2013 -0.1 -0.2 1.5 0.2 0.8 1.2 0.8 0.2 0.3 -0.1 0.7 0.1 2014 1.4 0.1 -0.9 0.8 0.5 0.2 -0.2 -0.7 -0.7 -0.6 -0.9 -0.6 2015 -0.8 0.2 -0.7 0.0 -0.7 -0.6 -1.1 -1.4 -1.6 -1.7 -0.5 -0.6 2016 -2.2 -2.0 -0.1 -1.2 0.4 0.6 0.4 0.7 1.2 -0.3 -0.1 0.3 2017 0.2 -0.1 0.9 -0.2 0.3 -0.4 0.8 0.5 0.6 0.9 NA NA