Question: which country has the highest rate of contraceptive use?
Answer: Russia (68% among sexually active women) ... 
Cuba (74% among sexually active women) ... 
Peru (74% among sexually active women) ... 
Costa Rica (76% among sexually active women) ... 
Iran (77% among sexually active women) ... 
Vietnam (78% among sexually active women) ... 
China (89% among sexually active women)