Average annual changes in actual results among recreational divers at Osezaki (1996–2001, n=3078)
| Year | Total |
|---|---|
| Number of divers | 3078 |
| Age (y) | |
| Total | 31.1 (7.9) |
| Male | 32.0 (8.0) |
| Female | 29.5 (7.5) |
| Sex (% female) | 37.3 |
| Diving history | |
| Years diving | 5.0 (5.0) |
| Total number of dives | 379.8 (979.3) |
| Dives per year | 59.5 (87.0) |
| Maximum diving depth (m) | 37.4 (12.9) |
| Activity on day of survey | |
| Dives | 2.0 (0.6) |
| Divers carrying diving computers (%) | 71.8 |