condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.163907 0.161572 0.166242 4 h after dark 0.16071000000000002 0.160393 0.161027 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0815465 0.0 0.163093