It does not include people in full-time education. All those people actually employed or self-employed make up the labour force.
Dependants make up the rest of the population.
Employment Trends There has been a radical change in the structure of occupational employment. Before the industrial revolution over 80 per cent of the labour force were employed in agricultural production. Now the figure is less than 3 per cent. As recently as 1951, over half the labour force were employed in manufacturing. Since then there has been a period of rapid decline, particularly in the heavy-engineering sector.