What would most likely happen to the chipmunk population in 2014 if the population went up to 22 million in 2013?

A graph entitled Population growth of chipmunks in Indiana from 1995 to 2012 has time in years on the horizontal axis and population size in millions on the vertical axis. From 1995 to 2001, the population increased rapidly to around 16 million. From 2001 to 2013, the population stayed relatively constant around 16 million.
The chipmunk population would continue to increase.
The carrying capacity would increase.
The chipmunk population would crash.
The death rate would decrease.