condition mean min max 0 h after light 0.083772 0.0 0.167544 2 h after light 0.174731 0.0 0.349462 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.059218 0.0 0.118436 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.056271 0.0 0.112542 12 h after dark 0.0 0.0 0.0