unable to drag over the period 1974-90.

6.494687 0.153972 3.8744% 1988 0.731574 1.366917 3.3218% 1987 4.677366 0.213796 3.1640% 1986 0.772037 1.295275 2.6144% 1985 13.202973 0.075741 2.9715% 1984 15.386183 0.064993 3.6576% 1983 13.852588 0.072189 3.8998% 1982 7.042228 0.142001 6.3831% 1981 0.872793 1.145747 9.6843% 1980 7.452453 0.134184 9.0330% 1979 0.669508 1.493634 8.8650% 1978 0.573016 1.745152 7.2813% 1977 8.628558 0.115894 6.6558% 1976 0.463011 2.159775 6.4073% 1975 0.505112 1.979759 9.8159% 1974 7.297168 0.137039 9.0909% 1973 1.666664 0.600001 6.4509% 1972 1.852618 0.539777 4.7304% 1971 0.954833 1.047304 5.7132% 1970 0.146279 6.836249 5.5272% 1969 0.328115 3.047708 5.5714% 1968 2.877821 0.347485 5.0148% 1967 0.234183 4.270172 2.5719% 1966 0.219530 4.555194 3.5485% 1965 3.558055 0.281052 2.7360% 1964 4.061914 0.246189 1.5423% 1963 0.481434 2.077127 1.5697% 1962 0.296189 3.376219 2.2421% 1961 0.220133 4.542703 0.9709% 1960 3.678732 0.271833 1.6442% 1959 3.576519 0.279601 2.3579% 1958 0.787796 1.269365 2.0623% 1957 0.197418 5.065399 3.5571% 1956 2.443578 0.409236 3.3098% 1955 1.850351 0.540438 3.4226% 1954 0.253127 3.950591 1.5421% 1953 0.787245 1.270253 1.5703% 1952 0.640696 1.560804 1.5948% 1951 0.699160 1.430288 5.0183% 1950 1.731935 0.577389 1.7034%

tilt