Daily per capita energy consumption,
kWh per day, per capita
Historical age Food Agriculture Domestic Industry Transport Total
-Cave Man(10,000,000 years ago) 3 - - - - 3
-Hunting Man (5000BC) 4 - 3 - - 7
-Agricultural Man (5000 BC) 5 2 6 - - 13
-Industrial Man(20th Century) 10 5 60 100 85 260
-Technologically advanced man(21st century) 10 5 60 150 185 410