condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.06663133333333333 0.0 0.199894 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 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.200307 0.175377 0.225237