rownames,time,value
1,1937,412
2,1938,480
3,1939,683
4,1940,1052
5,1941,1385
6,1942,1418
7,1943,1634
8,1944,2178
9,1945,3362
10,1946,5948
11,1947,6109
12,1948,5981
13,1949,6753
14,1950,8003
15,1951,10566
16,1952,12528
17,1953,14760
18,1954,16769
19,1955,19819
20,1956,22362
21,1957,25340
22,1958,25343
23,1959,29269
24,1960,30514