Table 1
Number of authors by age group.
| Age of authorship | 11 – 20 | 21 –30 | 31 – 40 | 41 – 50 | 51 – 60 | 61 – 70 | 71 – 80 | 81 – 90 | 91 – 100 |
| Autobiography | 1 | 3 | 4 | 8 | 5 | 4 | 1 | ||
| Oral History | 10 | 10 | 12 | 7 | 8 | 7 | 6 | 7 | 3 |
Table 2
Number of authors / interviews by decade of authorship.
| Decade of authorship | 1900–09 | 1910–19 | 1920–29 | 1930–39 | 1940–49 | 1950–59 | 1960–69 | 1970–79 | 1980–89 | 1990–99 | 2000–09 |
| Autobiography | 1 | 3 | 3 | 8 | 6 | 4 | |||||
| Oral History | 1 | 2 | 26 | 36 | 4 | 4 |
Figure 1
Age and Date of Atheisation by gender.
Note: Symbols below the zero axis indicate multiple records in that year.
Figure 2
Causes by Strength of Religious Background.
Figure 3
Cause groups by decade.
Figure 4
Proportion of Cause Groups by Gender.
Figure 5
Ratio of the Genders by Decades.