condition mean min max 0 h after light 4.089840000000001 4.07354 4.10614 4 h after light 4.075525 4.04843 4.10262 8 h after light 12.3887 11.8322 12.9452 4 h after dark 9.706395 8.13669 11.2761 8 h after dark 7.05612 6.73088 7.38136 12 h after dark 5.7985500000000005 4.97649 6.62061