condition mean min max 3 h after light 0.624555 0.0 0.949524 6 h after light 0.608112 0.388813 1.01734 9 h after light 2.8084666666666664 2.48546 3.19094 12 h after light 4.41064975 0.767279 6.89997 3 h after dark 8.446506666666666 6.18537 9.87565 6 h after dark 3.40559 3.31862 3.49401 9 h after dark 2.073621 0.615093 3.68327 12 h after dark 0.576418 0.235601 0.917235