About 8.167% of letters used in English texts tend to be ; the number is around 7.636% in French, 11.525% in Spanish, and 14.634% for Portuguese.
ɐbˌaʊt ˈeɪt.wˈʌnhˈʌndɹɪd sˈɪksti sˈɛvən pɚsˈɛnt ʌv lˈɛɾɚz jˈuːzd ɪn ˈɪŋɡlɪʃ tˈɛksts tˈɛnd tə bˈiː ; ðə nˈʌmbɚɹ ɪz ɚɹˈaʊnd sˈɛvən.sˈɪkshˈʌndɹɪd θˈɜːɾi sˈɪks pɚsˈɛnt ɪn fɹˈɛntʃ, ɪlˈɛvən.fˈaɪvhˈʌndɹɪd twˈɛnti fˈaɪv pɚsˈɛnt ɪn spˈænɪʃ, ænd fˈoːɹtiːn.sˈɪkshˈʌndɹɪd θˈɜːɾi fˈoːɹ pɚsˈɛnt fɔːɹ pˌoːɹtʃəɡˈiːz.