condition mean min max 0 h after light 0.895543 0.894745 0.896341 4 h after light 0.5167435 0.252048 0.781439 8 h after light 0.25839999999999996 0.126459 0.390341 4 h after dark 0.31458450000000004 0.251072 0.378097 8 h after dark 0.8859885 0.629437 1.14254 12 h after dark 0.697898 0.374606 1.02119