The population size of Y deme stood at 875 until a shift at 8731.3 generations ago, leading to a linear growth up to 6927.0 generations and 5260 individuals. Following this, there was an linear increase to 7400 individuals by 6169.59. Since 6169.59, the population has seen a exponential grew from 7400 to 9763, continuing to the current time.
time_units: generations
demes:
  - name: Y
    start_time: .inf
    epochs:
      - start_size: 875
        end_time: 8731.3
      - start_size: 875
        end_size: 5260
        end_time: 6927.0
        size_function: linear
      - start_size: 5260
        end_time: 6169.59
        end_size: 7400
        size_function: linear
      - end_time: 0
        start_size: 7400
        end_size: 9763
        size_function: exponential