condition mean min max 4 h after light 12.319387333333333 8.889102000000001 14.37965 8 h after light 5.319404 2.526496 7.052733 12 h after light 4.094494 1.6512080000000002 6.30764 16 h after light 13.364273333333333 11.163110000000001 16.79509 4 h after dark 8.588362333333333 2.887797 11.65663 8 h after dark 14.974946666666666 10.09856 20.3823