1. Update on Contraception
Here is an overview of traditional, over-the-counter, barrier and surgical contraception methods, with the estimated effectiveness of each assuming they are used correctly. Traditional, Barrier and Surgical Methods.
http://healthlink.mcw.edu/article/1022855064.html

2. Achievements in Public Health, 1900-1999: Family Planning
Efficacy of commonly used methods of contraception* and percentage of couples using the method -- United States, 1995. Distributing information and counseling patients about contraception and contraceptive devices was illegal under federal and...
http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4847a1.htm

3. Cyprus Health Statistics
Where sources fail to distinguish modern and traditional methods, the combined rate is shown. An estimate of the proportion of women, aged 15 through 44 (or, in some countries, 15 through 49), in union or married, currently using a modern method...
http://www.kypros.org/Cyprus/health.html