needs. National product: GDP - exchange rate

1961 3.714449 0.269219 0.9709% 1960 4.233003 0.236239 1.6442% 1959 3.200149 0.312485 2.3579% 1958 0.136119 7.346513 2.0623% 1957 3.986381 0.250854 3.5571% 1956 4.194275 0.238420 3.3098% 1955 0.915826 1.091911 3.4226% 1954 3.652557 0.273781 1.5421% 1953 0.275536 3.629284 1.5703% 1952 0.245428 4.074508 1.5948% 1951 1.976367 0.505979 5.0183% 1950 0.278882 3.585750 1.7034% 1949 2.764720 0.361700 -0.4250% 1948 0.116990 8.547773 6.7886% 1947 2.907968 0.343883 13.9149% 1946 2.309672 0.432962 22.7896% 1945 0.339779 2.943092 3.2661% 1944 1.912448 0.522890 1.3234% 1943 0.305056 3.278089 2.7232% 1942 1.986447 0.503411 6.5229% 1941 0.366041 2.731935 6.1527% 1940 2.166611 0.461550 -8.4517% 1930 0.055631 17.975466 -7.1894% 1920 2.039898 0.490221 1.3234% 1943 0.359526 2.781439 2.7232% 1942 0.218425 4.578240 0.0000% 1926 0.296969 3.367356 6.5229% 1941 0.907894 1.101450 6.1527% 1940 0.240740 4.153857

becomes