condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.06487 0.0 0.19461 12 h after light 0.0 0.0 0.0 4 h after dark 0.3381633333333333 0.0 1.01449 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0