This data frame is extracted from Table 10.3 from Chapter 10, "Centenarians and Supercentenarians in Japan", in the Monograph Exceptional lifespans. The data were constructed by the extinct cohort method and are stratified by age cohort (five year group, except 1899-1900) and by sex. Note that the family registry system (KOSEKI), introduced in 1872, was standardized in 1886.
A data frame with 216 rows and 4 variables:
- age
integer, age (to the smallest year) at death (in years)
- bcohort
factor, birth cohort
- count
integer, number of death for cohort at given age
- gender
factor, the gender of the individuals; either male or female
References
Saito, Yasuhiko and Futoshi Ishii, and Jean-Marie Robine (2021). Centenarians and Supercentenarians in Japan. In Exceptional lifespans, Maier, H., Jeune, B., Vaupel, J. W. (Eds.), Demographic research monographs 17 VII, pp. 125-145. Cham, Springer.