condition mean min max 0 h after light 5.857775 5.34322 6.37233 4 h after light 30.856499999999997 19.0656 42.6474 8 h after light 19.40965 19.0055 19.8138 4 h after dark 18.1537 17.7423 18.5651 8 h after dark 4.3417 4.13475 4.54865 12 h after dark 9.861255 9.65571 10.0668