Up until 9681.8 generations ago, the count of N deme was 9827. Following that period, it reduced to 7135, where it has persisted until now.
time_units: generations
demes:
  - name: N
    start_time: .inf
    epochs:
      - start_size: 9827
        end_time: 9681.8
      - start_size: 7135
        end_time: 0