Year | As of Jan. 1 | During Calendar Year | Percent Leavinga | ||
---|---|---|---|---|---|
 |  | Total | Hired | 1. Left |  |
1951 | 795 | 1,250 | 455 | 419 | 51.5 |
1952 | 831 | 1,791 | 960 | 757 | 81.2 |
1953 | 1,034 | 1,951 | 917 | 841 | 78.5 |
1954 | 1,110 | 2,206 | 1,096 | 961 | 81.6 |
1955 | 1,245 | 2,165 | 920 | 902 | 71.9 |
1956 | 1,263 | 2,250 | 987 | 951 | 74.2 |
1957 | 1,299 | 2,111 | 812 | 878 | 69.4 |
1958 | 1,233 | 1,577 | 344 | 415 | 34.7 |
1959 | 1,162 | 1,440 | 278 | 317 | 27.7 |
1960 | 1,123 | 1,591 | 468 | 445 | 39.2 |
1961 | 1,146 | 1,733 | 587 | 547 | 46.9 |
1962 | 1,186 | 1,602 | 416 | 455 | 39.0 |
1963 | 1,147 | 1,319 | 172 | 304 | 28.1 |
1964 | 1,015 | 1,261 | 246 | 178 | 17.0 |
1965 | 1,083 | 1,684 | 601 | 612 | 56.8 |
1966 | 1,072 | 1,617 | 545 | 564 | 53.1 |
1967 | 1,053 | 1,447 | 394 | 463 | 45.5 |
1968 | 984 | 1,506 | 522 | 452 | 44.4 |
1969 | 1,054 | 1,809 | 755 | 708 | 67.2 |
Avg | 1,097 | 1,701 | 604 | 588 | 53.0 |
SD | 133 | 315 | 279 | 238 | 19.7 |