sɪɡnˈɪfɪkənt dɪvˈɛləpmənt dɪdnˌɑːt əkˈɜːɹ ʌntˈɪl ðə pˈoʊstwˈɔːɹ jˈɪɹz, wɪð ɹˈæpɪd ɡɹˈoʊθ fɹʌmðə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti z θɹuː tə ðə nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi z.
Significant development did not occur until the post-war years, with rapid growth from the 1970s through to the 1980s.