за 12 лет 1976-1987 число сельских

за 12 лет 1976-1987 число сельских жителей в трудоспособном возрасте уменьшилось на три с половиной миллиона , то есть на 7 процентов.

Результаты (английский) 1:

for 12 years, 1976-1987 the number of rural people of working age fell by three and a half million, a 7 per cent.

Результаты (английский) 2:

12 years 1976-1987 the number of rural people of working age has decreased by three and a half million, or 7 percent.

Результаты (английский) 3:

Over the 12 years 1976-1987 the number of rural residents in the working-age population has decreased in the three and a half million, that is a 7 per cent.