1960	-0.010376449
1961	-0.00907436
1962	-0.011451523
1963	-0.013043243
1964	-0.009042142
1965	-0.042157213
1966	-0.041579914
1967	-0.024584076
1968	-0.030610058
1969	-0.034280466
1970	-0.038731502
1971	-0.056809776
1972	-0.082487396
1973	-0.07625218
1974	-0.074923396
1975	-0.123960739
1976	-0.094731825
1977	-0.08341546
1978	-0.10127088
1979	-0.098150816
1980	-0.082932875
1981	-0.113243098
1982	-0.111237982
1983	-0.104424034
1984	-0.114364628
1985	-0.122661682
1986	-0.113694485
1987	-0.109480705
1988	-0.106852328
1989	-0.097991507
1990	-0.110386375
1991	-0.100011259
1992	-0.094658796
1993	-0.09398175
1994	-0.090812794
1995	-0.07592328
1996	-0.07099236
1997	-0.02701285
1998	-0.02827853
1999	-0.01758728
2000    -0.0153495

