condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.062359 0.0 0.124718 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.071208 0.0 0.142416 4 h after dark 0.1222875 0.0 0.244575 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0