Year (t)	ln(R_t_,cal)	ln(R_t_,obs) − ln(R_t_,cal)		ln(S_t₊₂) − ln(S_t)
1951	6.74	0.16		−0.15
1952	6.66	0.57	●	0.00	●
1953	6.59	0.64	●	0.09	●
1954	6.66	0.22	●	0.09	●
1955	6.69	0.00		−0.03
1956	6.74	−0.20	●	−0.22	●
1957	6.66	0.08	●	0.09	●
1958	6.53	1.70	●	0.76	●
1959	6.74	1.81	●	0.84	●
1960	7.27	−0.47		0.05
1961	7.56	−1.15	●	−0.78	●
1962	7.32	−1.22	●	−1.08	●
1963	6.79	−1.14	●	−1.00	●
1964	6.26	−1.11	●	−0.69	●
1965	5.82	−0.85	●	−0.44	●
1966	5.58	−0.45	●	−0.20	●
1967	5.38	−0.01	●	−0.59	●
1968	5.38	0.26		−0.59
1969	4.81	1.37	●	0.34	●
1970	4.81	2.55	●	1.69	●
1971	5.14	3.99	●	2.11	●
1972	6.46	1.00	●	2.02	●
1973	7.21	3.96	●	2.01	●
1974	8.44	0.84	●	1.43	●
1975	9.18	0.96	●	1.41	●
1976	9.84	1.09	●	1.12	●
1977	10.56	0.87	●	0.87	●
1978	10.94	0.51	●	0.76	●
1979	11.41	−0.76		0.23
1980	11.68	0.90	●	0.37	●
1981	11.63	0.56	●	0.54	●
1982	12.05	−0.09		0.03
1983	12.16	−0.06	●	−0.12	●
1984	12.08	0.19	●	0.23	●
1985	12.04	0.38	●	0.34	●
1986	12.30	0.17	●	0.24	●