Deme V maintained a population of 7729 until there was a shift 1966.2 generations ago that changed its numbers to 5098, a figure that has remained the same since.
time_units: generations
demes:
  - name: V
    start_time: .inf
    epochs:
      - start_size: 7729
        end_time: 1966.2
      - start_size: 5098
        end_time: 0