condition mean min max 4 h after light 7.313925 5.99708 8.63077 8 h after light 7.367805000000001 7.08114 7.65447 12 h after light 10.13701 9.74572 10.5283 4 h after dark 11.851266666666666 11.4383 12.0658 8 h after dark 12.848099999999999 11.6953 13.9828 12 h after dark 8.752056666666666 7.42721 9.57798