condition mean min max 3 h after light 0.05267066666666667 0.0 0.158012 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.039447 0.0 0.118341 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0