Table 1. Demographic waves.
| Birth cohort | Age group | Demographic characteristic | Average number per birth year as of 31.12.2009) | ||
| 2000 | 2009 | Female | Male | ||
| 27 and earlier | 73 and older | 82 and older | Men killed in World War II | 152 | 75 |
| 1919–1930 | 70–81 | 79–90 | Increased birthrate after World War I | 254 | 131 |
| 1931–1933 | 67–69 | 76–78 | Low birthrate around time of world economic depression | 335 | 250 |
| 1934–1944 | 56–66 | 65–75 | High birthrate from 1934 | 501 | 443 |
| 1945–1947 | 53–55 | 62–64 | Low birthrate at end of World War II | 398 | 381 |
| 1948–1958 | 42–52 | 51–61 | Increased birthrate after World War II | 554 | 550 |
| 1959–1968 | 32–41 | 41–50 | Baby boomers | 681 | 709 |
| 1969–1975 | 25–31 | 34–40 | Reduced birthrate 1969–1975 | 523 | 540 |
Source: Population statistics of the German Federal Statistical Office (calculations by the author)