4% Est. 1998 3.321072 0.301108 4% Est. 1993 3.703527 0.270013 4% Est. 1995 2.208174 0.452863 4% Est. 1997 22.689983 0.044072 4% Est. 2003 29.090598 0.034375 4% Est. 1997 13.367804 0.074807 4% Est. 2002 8.358637 0.119637 4% Est. 2007 30.029899 0.033300 4% Est. 2005 7.173094 0.139410 4% Est. 1989 0.821927 1.216653 4% Est. 2005 24.842574 0.040253 4% Est. 1989 18.529499 0.053968 3.8744% 1988 9.330849 0.107171 3.3218% 1987 3.762822 0.265758 3.1640% 1986 3.743385 0.267138 2.6144% 1985 14.785946 0.067632 2.9715% 1984 11.337295 0.088204 3.6576% 1983 2.340096 0.427333 3.8998% 1982 7.042228 0.142001 6.3831% 1981 0.398313 2.510591 9.6843% 1980 1.587052 0.630099 9.0330% 1979 9.824771 0.101784 8.8650% 1978 2.569371 0.389200 7.2813% 1977 0.715955 1.396737 6.6558% 1976 4.322025 0.231373 6.4073% 1975 1.950653 0.512649 9.8159% 1974 0.459962 2.174091 9.0909% 1973 6.689074 0.149498 6.4509% 1972 6.118592 0.163436 4.7304% 1971 0.564880 1.770288 5.7132% 1970 4.421254 0.226180 5.5272% 1969 4.853747 0.206026 5.5714% 1968 5.094533 0.196289 5.0148% 1967 1.161801 0.860732 2.5719% 1966 1.583693 0.631436 3.5485% 1965 2.299350 0.434905 2.7360% 1964 4.386446 0.227975 1.5423% 1963 1.466080 0.682091 1.5697% 1962 0.208089 4.805638 2.2421% 1961 0.142994 6.993280 0.9709% 1960 2.759028 0.362446 1.6442% 1959 4.053152 0.246722 2.3579% 1958 4.433047 0.225578 2.0623% 1957 2.108718 0.474222 3.5571% 1956 1.911594 0.523124 3.3098% 1955 1.066666 0.937500
roughening