The current population of Tanzania is 44.4 million with a population growth rate...

[ScottBecker]

...of 2.2% per year.? The average agricultural output has increased at a linear rate of about 1.1% per year for the last five years or so. Ideally, one person should have a caloric intake of at least 2000 kcal per day in order to maintain their life. 1 kg grain supplies 3000 kcal; 1 kg tubers supplies 1000 kcal.