year wnpmidx-jul 1948 0.505 1949 -0.396 1950 0.972 1951 -0.924 1952 0.147 1953 -0.657 1954 -2.104 1955 -1.120 1956 -0.306 1957 -1.083 1958 0.435 1959 -0.560 1960 -1.235 1961 0.478 1962 1.341 1963 0.286 1964 -1.193 1965 1.426 1966 -0.242 1967 0.593 1968 -0.436 1969 0.956 1970 -0.662 1971 0.982 1972 2.314 1973 -0.124 1974 -0.834 1975 -1.182 1976 0.207 1977 0.393 1978 0.026 1979 0.010 1980 -0.273 1981 0.149 1982 1.094 1983 -1.406 1984 -1.454 1985 -0.533 1986 0.690 1987 -0.058 1988 -0.762 1989 0.042 1990 0.505 1991 -0.145 1992 -0.928 1993 -0.738 1994 2.153 1995 -0.747 1996 0.363 1997 0.369 1998 -2.506 1999 0.534 2000 0.786 2001 1.123 2002 1.593 2003 -0.838 2004 -0.772 2005 0.214 2006 1.284 2007 -1.379 2008 -0.317 2009 0.972 2010 -1.794 2011 0.618 2012 0.755 2013 -0.222 2014 1.547 2015 0.353 2016 -0.906 2017 0.423 2018 2.379 2019 -0.182