condition mean min max 4 h after light 3.451953666666667 3.336461 3.579681 8 h after light 3.7418683333333336 2.918526 4.832219 12 h after light 4.282658 3.260938 5.191546 16 h after light 3.302535333333333 2.733019 3.8752519999999997 4 h after dark 3.234608 2.6278259999999998 3.8101800000000003 8 h after dark 1.739377 1.6075629999999999 1.819575