condition mean min max 2 h after light 1.2635981666666667 0.579543 1.86601 6 h after light 0.991318 0.711612 1.67033 10 h after light 0.981473 0.336165 1.75797 14 h after light 0.6817098333333333 0.247777 1.32679 18 h after light 1.2628473333333334 0.529826 2.46849 2 h after dark 0.783277 0.37947 1.56944