condition mean min max 4 h after light 3.811022 3.226101 4.691873999999999 8 h after light 5.727537333333333 2.704764 9.452767999999999 12 h after light 4.341211666666666 3.517992 4.958054 16 h after light 5.451255333333333 2.950409 7.607264 4 h after dark 5.274632666666666 3.5267459999999997 6.3193529999999996 8 h after dark 4.051484333333333 1.7908990000000002 8.045212