ɪnðə juːnˈaɪɾᵻd stˈeɪts, fɔːɹ ˈɪnstəns, ðə flˈuːənsi ʌv ˈɪŋɡlɪʃ ɪz ɐ wˈaɪdli jˈuːzd ˈɪndᵻkˌeɪɾɚ ænd kæn biː ˈiːzili fˈaʊnd ɪn ɐ ɹᵻpˈoːɹt ˌɔn ˌɪmɪɡɹˈeɪʃən.
In the United States, for instance, the fluency of English is a widely used indicator and can be easily found in a report on immigration.