condition mean min max 0 h after light 0.124853 0.059038 0.190668 2 h after light 0.02957145 0.0 0.0591429 4 h after light 0.0289354 0.0 0.0578708 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.03201865 0.0 0.0640373 12 h after dark 0.09332405 0.0606081 0.12604