condition mean min max 0 h after light 1.045679 0.697948 1.39341 4 h after light 0.3549455 0.0 0.709891 8 h after light 0.3496215 0.344641 0.354602 4 h after dark 1.5443015 0.684253 2.40435 8 h after dark 0.8620490000000001 0.686168 1.03793 12 h after dark 1.3801700000000001 1.02092 1.73942