condition mean min max 4 h after light 1.3732015 0.641253 2.10515 8 h after light 1.50765 1.24426 1.77104 12 h after light 1.80883 1.53484 2.08282 4 h after dark 1.9294666666666667 1.28835 2.9663 8 h after dark 1.7979633333333334 1.51197 1.98377 12 h after dark 2.0519600000000002 1.76778 2.50857