condition mean min max 0 h after light 0.631788 0.435207 0.828369 4 h after light 1.469029 0.986908 1.95115 8 h after light 2.83915 2.79871 2.87959 4 h after dark 1.7774649999999999 1.70972 1.84521 8 h after dark 0.9892704999999999 0.821251 1.15729 12 h after dark 0.6240490000000001 0.552702 0.695396