condition mean min max 0 h after light 2.02954 1.87162 2.18746 4 h after light 1.2159200000000001 1.01709 1.41475 8 h after light 0.24956699999999998 0.19052 0.308614 4 h after dark 0.3683615 0.367635 0.369088 8 h after dark 0.9872455 0.983103 0.991388 12 h after dark 1.971325 1.93141 2.01124