Deme V maintained a population of 3842 until there was a shift 2976.4 generations ago that increased its numbers to 5830, a figure that has remained the same since.
time_units: generations
demes:
  - name: V
    start_time: .inf
    epochs:
      - start_size: 3842
        end_time: 2976.4
      - start_size: 5830
        end_time: 0