condition mean min max 0 h after light 0.42914949999999996 0.171905 0.686394 4 h after light 1.5481500000000001 1.52268 1.57362 8 h after light 1.4700350000000002 1.01862 1.92145 4 h after dark 1.01319 1.01119 1.01519 8 h after dark 0.8492915 0.676013 1.02257 12 h after dark 0.6780065 0.670541 0.685472