Interracial marriages between Cantonese-Chinese males and Peruvian females was quite large resulting in large number of mixed children's and people with some Chinese ancestry in Peru. There is no prevailing racist attitude against intermarriage between the Chinese and non-Chinese in Peru, so the number of interracial marriages is quite large. According to one source, the number of mix raced children born was 180,000. Half of that number was in Lima alone, with the ratio between Chinese mestizo and the full-blooded Chinese at 90,000 to 15,000 (6:1). There is estimated up to 2.5 million (up to 8% of Peru) citizens are of mixed Chinese-Peruvian ancestry known as 'Tusans'. One estimates puts 4.2 million (15%) of the Peruvians having some Chinese ancestry.