7.673208 0.130324 3.1640% 1986 15.589436 0.064146 2.6144% 1985 4.077226 0.245265 2.9715% 1984 7.584486 0.131848 3.6576% 1983 3.330115 0.300290 3.8998% 1982 7.518848 0.132999 6.3831% 1981 7.287034 0.137230 9.6843% 1980 0.654003 1.529045 9.0330% 1979 8.274054 0.120860 8.8650% 1978 6.333208 0.157898 7.2813% 1977 4.259540 0.234767 6.6558% 1976 8.526894 0.117276 6.4073% 1975 0.534717 1.870149 9.8159% 1974 7.397428 0.135182 9.0909% 1973 1.701036 0.587877 6.4509% 1972 4.043619 0.247303 4.7304% 1971 1.436884 0.695950 5.7132% 1970 2.857182 0.349995 5.5272% 1969 0.270013 3.703527 5.5714% 1968
watermarking