dietary energy availability per person per day - now and then

  In 2001-2003, world average was 2800 kcal/person/day.

In 1961, world average was 2,253.9 kcal/person/day. 

   no data
   <1600
   1600-1800
   1800-2000
   2000-2200
   2200-2400
   2400-2600
   2600-2800
   2800-3000
   3000-3200
   3200-3400
   3400-3600
   >3600
Note:
http://en.wikipedia.org/wiki/Dietary_energy_supply