condition mean min max 4 h after light 4.513105 3.73063 5.29558 8 h after light 3.52489 3.46582 3.58396 12 h after light 3.315875 3.14793 3.48382 4 h after dark 5.203353333333333 4.44347 5.60414 8 h after dark 4.763803333333334 4.27708 5.39552 12 h after dark 4.175513333333333 3.68036 4.65092