condition mean min max 0 h after light 2.32571 1.94578 2.70564 2 h after light 1.074055 1.05584 1.09227 4 h after light 1.53902 1.43049 1.64755 8 h after light 1.63016 1.33457 1.92575 12 h after light 2.602225 1.87283 3.33162 2 h after dark 3.7274399999999996 3.44845 4.00643 4 h after dark 3.3927750000000003 2.33769 4.44786 8 h after dark 3.574465 3.19165 3.95728 12 h after dark 2.971025 2.91306 3.02899