According to Robert Davis, from the 16th to 19th century, pirates captured 1 million to 1.25 million Europeans as slaves.
ɐkˈoːɹdɪŋ tə ɹˈɑːbɚt dˈeɪvɪs, fɹʌmðə sˈɪkstiːnθ tə nˈaɪntiːnθ sˈɛntʃɚɹi, pˈaɪɹəts kˈæptʃɚd wˈʌn mˈɪliən tə wˈʌn.twˈɛnti fˈaɪv mˈɪliən jˌʊɹɹəpˈiənz æz slˈeɪvz.