year  wymidx-jjas
1948   2.246
1949   0.829
1950   1.232
1951  -0.810
1952   0.720
1953   0.183
1954   1.970
1955   0.809
1956   0.592
1957  -0.332
1958   1.162
1959   0.215
1960   1.279
1961   1.692
1962   0.142
1963  -0.753
1964   1.333
1965   0.209
1966  -0.576
1967   0.902
1968   0.232
1969  -0.054
1970   1.371
1971   0.344
1972  -2.825
1973   0.060
1974  -0.928
1975   0.374
1976  -0.928
1977  -0.547
1978   0.770
1979  -1.940
1980   0.479
1981   0.864
1982  -0.034
1983  -0.727
1984  -0.023
1985   1.492
1986  -0.159
1987  -1.698
1988   0.249
1989  -0.555
1990   0.649
1991  -0.062
1992  -1.081
1993  -0.171
1994   0.188
1995  -0.422
1996  -1.000
1997  -2.571
1998  -0.119
1999   0.380
2000  -0.396
2001  -0.040
2002  -1.073
2003  -0.710
2004  -0.484
2005  -0.012
2006  -0.940
2007  -0.998