interviewer's year of birth
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| -9 | 1.00 | 0.64% | |
| 1937 | 1.00 | 0.64% | |
| 1939 | 1.00 | 0.64% | |
| 1940 | 1.00 | 0.64% | |
| 1941 | 2.00 | 1.27% | |
| 1942 | 2.00 | 1.27% | |
| 1943 | 2.00 | 1.27% | |
| 1944 | 2.00 | 1.27% | |
| 1945 | 3.00 | 1.91% | |
| 1946 | 2.00 | 1.27% | |
| 1947 | 4.00 | 2.55% | |
| 1948 | 8.00 | 5.10% | |
| 1949 | 5.00 | 3.18% | |
| 1950 | 3.00 | 1.91% | |
| 1951 | 9.00 | 5.73% | |
| 1952 | 9.00 | 5.73% | |
| 1953 | 4.00 | 2.55% | |
| 1954 | 4.00 | 2.55% | |
| 1955 | 7.00 | 4.46% | |
| 1956 | 3.00 | 1.91% | |
| 1957 | 8.00 | 5.10% | |
| 1958 | 3.00 | 1.91% | |
| 1959 | 7.00 | 4.46% | |
| 1960 | 8.00 | 5.10% | |
| 1961 | 8.00 | 5.10% | |
| 1962 | 2.00 | 1.27% | |
| 1963 | 9.00 | 5.73% | |
| 1964 | 3.00 | 1.91% | |
| 1965 | 2.00 | 1.27% | |
| 1966 | 6.00 | 3.82% | |
| 1967 | 4.00 | 2.55% | |
| 1968 | 4.00 | 2.55% | |
| 1969 | 3.00 | 1.91% | |
| 1970 | 1.00 | 0.64% | |
| 1971 | 2.00 | 1.27% | |
| 1972 | 7.00 | 4.46% | |
| 1973 | 1.00 | 0.64% | |
| 1974 | 2.00 | 1.27% | |
| 1977 | 2.00 | 1.27% | |
| 1979 | 1.00 | 0.64% | |
| 1980 | 1.00 | 0.64% | |
| Total | 157.00 | 100.00% |
