About 100,000 Cantonese coolies (almost all males) in 1849 to 1874 migrated to Peru and intermarried with Peruvian women of European, African, Amerindian, mestizo and mulatto origin. Many Peruvian Chinese today are of mixed Spanish, Amerindian and Chinese lineages. Among this population exist many of African slave lineage. Estimates for the Chinese-Peruvian population range from about 1.3–1.6 million. Asian-Peruvians are estimated to be 3% of the population, but one source places the number of citizens with some Chinese ancestry at 4.2 million, which equates to 15% of the country's total population.