condition mean min max 4 h after light 5.53535 4.6981 6.3726 8 h after light 3.29108 3.24018 3.34198 12 h after light 4.8525 4.23116 5.47384 4 h after dark 6.798473333333333 5.63659 7.84131 8 h after dark 6.966096666666666 6.35638 7.85973 12 h after dark 8.93418 7.18539 10.2518