condition mean min max 4 h after light 12.5631 11.97526 13.011289999999999 8 h after light 9.852967 5.741421 16.90064 12 h after light 2.9553046666666667 1.5657940000000001 3.681836 16 h after light 6.11605 4.6550839999999996 6.92508 4 h after dark 6.210916 2.9226509999999997 8.868069 8 h after dark 8.988816 8.544405000000001 9.519227