year  wnpmidx-jja
1948   2.105
1949  -0.162
1950   0.734
1951  -0.270
1952   1.002
1953   0.314
1954  -1.286
1955  -2.183
1956  -0.347
1957  -0.208
1958  -0.059
1959  -1.404
1960   0.322
1961   1.494
1962   0.320
1963   0.736
1964  -0.337
1965   0.588
1966  -0.950
1967   1.205
1968   0.426
1969   0.010
1970  -0.405
1971  -0.464
1972   0.682
1973  -0.941
1974  -0.739
1975  -0.709
1976   0.484
1977   0.177
1978   1.187
1979  -0.232
1980  -0.208
1981   0.440
1982   1.052
1983  -1.994
1984   0.230
1985   1.389
1986   1.291
1987  -0.425
1988  -2.230
1989  -0.109
1990   1.459
1991   0.507
1992  -0.058
1993  -0.905
1994   1.331
1995  -1.330
1996  -1.133
1997   0.076
1998  -2.881
1999  -0.159
2000  -0.129
2001   1.166
2002   1.023
2003  -0.262
2004   0.832
2005   0.420
2006   0.400
2007  -0.881