condition mean min max 4 h after light 2.86393 2.83971 2.88815 8 h after light 1.60487 1.43796 1.77178 12 h after light 2.7553549999999998 2.52893 2.98178 4 h after dark 3.40097 3.36354 3.4384 8 h after dark 3.41506 3.29231 3.53781 12 h after dark 3.092665 2.66572 3.51961