year  wnpmidx-jun
1948   1.194
1949  -0.092
1950   0.940
1951   0.206
1952   0.853
1953  -0.019
1954  -1.313
1955  -0.327
1956  -0.886
1957  -0.046
1958   0.550
1959  -2.023
1960   1.204
1961   0.848
1962  -0.438
1963   2.190
1964  -0.363
1965   0.977
1966  -0.981
1967   0.208
1968  -0.906
1969  -0.272
1970   0.085
1971   0.461
1972  -0.184
1973  -1.024
1974   0.673
1975   0.242
1976   0.632
1977  -1.251
1978   0.395
1979   0.262
1980   0.002
1981   1.550
1982   0.398
1983  -1.125
1984   1.265
1985   2.546
1986   0.197
1987   0.304
1988  -0.171
1989  -0.105
1990   1.590
1991  -0.180
1992  -0.102
1993  -1.166
1994   0.084
1995  -1.421
1996  -2.091
1997   0.155
1998  -1.414
1999   0.538
2000  -0.575
2001   0.488
2002  -0.271
2003  -0.863
2004   2.466
2005  -0.407
2006  -0.995
2007  -1.631
2008  -0.862