condition mean min max 0 h after light 0.2622935 0.0 0.524587 4 h after light 0.2857315 0.0 0.571463 8 h after light 0.0 0.0 0.0 4 h after dark 0.2571465 0.0 0.514293 8 h after dark 0.515735 0.0 1.03147 12 h after dark 0.52295 0.0 1.0459