condition mean min max 2 h after light 12.1321 10.1066 13.5968 6 h after light 11.23596 6.1053 14.8604 10 h after light 13.477683333333333 10.9973 18.212 14 h after light 11.549576666666667 6.67633 16.8175 18 h after light 9.526823333333333 7.9733 11.3792 2 h after dark 3.806535 1.59713 6.00252