Table 4.

Relative matching results

Total	57	100.0%
Single match of a KPWA member on last name + first name	29	50.9%
Additional single match adding birthyear	7	12.3%
Additional single match birthyear + birth month	2	3.5%
Single match on last name + birthdate only	2	3.5%
Total single matches	40	70.2%
Matched on 2–11 KPWA members	7	12.3%
Matched on 12 or more KPWA members (range 29–169, mean 137)*	10	17.5%

*All people who did not match last name + first name