What are the 5 stages of the Population Demographic?

The first stage is where the population is low but the death rate and the birth rate is high. The second stage is where the death rate goes down but the birth rate stays the same which means the population goes up. The third stage has the birth rate go down so the population slows down. The fourth stage is when the birth rate and the death rate are close to each other so the population barely goes up. The fifth stage is when the birth rate goes under the death rate which means a slow decrease in population