condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.01442425 0.0 0.0288485 4 h after dark 0.0 0.0 0.0 8 h after dark 0.01395575 0.0 0.0279115 12 h after dark 0.0138428 0.0 0.0276856