ðə fˈɑːloʊɪŋ sˈɪks jˈɪɹz nˈaɪntiːnhˈʌndɹɪd sˈɪksti nˈaɪn sˈɛvənti ˌʌp tə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti fˈoːɹ sˈɛvənti fˈaɪv, ðə kˌɑːmpətˈɪʃən wʌz hˈɛld wɪð θɹˈiː ɡɹˈuːps, wˈɛɹæz fɹʌm nˈaɪntiːnhˈʌndɹɪd sˈɛvənti fˈaɪv tə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti sˈɪks ˌʌp tə nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi tˈuː ˈeɪɾi θɹˈiː ðə lˈiːɡ wʌz ɐɡˈɛn kəntˈɛstᵻd ɪn tˈuː ɡɹˈuːps, nˈɔːɹθ ænd sˈaʊθ.
The following six years (1969–70 up to 1974–75), the competition was held with three Groups, whereas from 1975 to 1976 up to 1982–83 the league was again contested in two Groups, North and South.