4% Est. 2001 30.110434 0.033211 4% Est. 1991 20.041506 0.049896 4% Est. 1989 1.107206 0.903174 3.8744% 1988 16.846341 0.059360 3.3218% 1987 0.680821 1.468816 3.1640% 1986 7.437877 0.134447 2.6144% 1985 1.647860 0.606848 2.9715% 1984 13.808342 0.072420 3.6576% 1983 0.515045 1.941579 3.8998% 1982 14.926127 0.066997 6.3831% 1981 15.666359 0.063831 9.6843% 1980 10.202853 0.098012 9.0330% 1979 0.284701 3.512462 8.8650% 1978 0.261517 3.823843 7.2813% 1977 8.308962 0.120352 6.6558% 1976 5.007780 0.199689 6.4073% 1975 8.235712 0.121422 9.8159% 1974 4.426187 0.225928 9.0909% 1973 6.187293 0.161622 6.4509% 1972 0.939400 1.064509 4.7304% 1971 5.414650 0.184684 5.7132% 1970 3.206079 0.311908 5.5272% 1969 1.686440 0.592965 5.5714% 1968 5.309796 0.188331 5.0148% 1967 2.826774 0.353760 2.5719% 1966 0.298122 3.354334 3.5485% 1965 3.885178 0.257388 2.7360% 1964 4.218151 0.237071 1.5423% 1963 1.015697 0.984546 1.5697% 1962 0.759510 1.316638 2.2421% 1961 0.211667 4.724412 0.9709% 1960 0.172302 5.803775 1.6442% 1959 1.727270 0.578948 2.3579% 1958 1.966857 0.508425 2.0623% 1957 3.423525 0.292097 3.5571% 1956 0.110088 9.083648 3.3098% 1955 0.252553 3.959569 3.4226% 1954 0.851125 1.174916 1.5421% 1953 0.921715 1.084934 1.5703% 1952 0.858587 1.164704 1.5948% 1951 2.952920 0.338648 5.0183% 1950 0.737655 1.355648 1.7034% 1949 1.766927 0.565954 -0.4250% 1948 0.227144 4.402485 6.7886% 1947 0.759455
abrasiveness