condition mean min max 0 h after light 0.7919185 0.679479 0.904358 4 h after light 0.3678245 0.345553 0.390096 8 h after light 0.3691375 0.335521 0.402754 4 h after dark 0.639706 0.610634 0.668778 8 h after dark 0.587089 0.556675 0.617503 12 h after dark 0.4748765 0.441735 0.508018