condition mean min max 4 h after light 0.975842 0.651224 1.30046 8 h after light 0.6703545 0.516028 0.824681 12 h after light 0.6298275 0.482741 0.776914 4 h after dark 1.307275 0.921005 1.64269 8 h after dark 0.9159813333333333 0.402824 1.2068 12 h after dark 0.8830966666666666 0.0 1.40611