Initially, the population size of deme Q stood at 2881, but this changed 966.9845 generations ago when it changed to 5141, and it has been stable at that size up to today.
time_units: generations
demes:
  - name: Q
    start_time: .inf
    epochs:
      - start_size: 2881
        end_time: 966.9845
      - start_size: 5141
        end_time: 0