condition mean min max 4 h after light 20.485419999999998 16.854429999999997 24.77732 8 h after light 25.615129999999997 14.45091 35.09195 12 h after light 16.735413333333334 14.57285 18.22176 16 h after light 23.979366666666664 12.68154 31.12115 4 h after dark 22.874056666666668 17.43874 26.068360000000002 8 h after dark 21.91959 11.35453 28.52655