public void NextYear()
{
float prevPopulation = populationLine.GetValueOfLastPoint();
//People die
float deaths = KillSome(); //Doesn't update any charts. Happens later.
float births = CalculateBirths();
//People are born and everyone age to make space for the young'ns
AgeEveryone(births); //Updates the age chart
RecalculateRates(births, deaths, prevPopulation); //Updates the rate chart
RecalculatePopulation(); //Updates the population chart
}
