condition mean min max 4 h after light 4.3645499999999995 4.32975 4.42085 8 h after light 4.4558 4.35458 4.51317 12 h after light 4.4329 4.37772 4.51163 4 h after dark 4.463093333333333 4.40509 4.49782 8 h after dark 4.353823333333334 4.26326 4.41556 12 h after dark 4.4491000000000005 4.31498 4.528490000000001