Which of the following Statements is not true
1
according to the 2011 census, 48.9 Per cent of main workers of labour force were employed in agricultural and allied sectors
2
the proportion of workers in 2011-12 employed in the services sector is 36.7 per cent
3
the relative size of the services sector grew during the period 1991-2011
4
there has been a marked difference in the occupational structure of different categories