condition mean min max 4 h after light 13.371073333333333 11.516169999999999 14.94886 8 h after light 12.805418999999999 9.792036999999999 16.78045 12 h after light 9.761955333333333 7.970646 12.02769 16 h after light 18.339553333333335 12.34672 25.16555 4 h after dark 8.84871 5.4520290000000005 12.31025 8 h after dark 11.747882666666667 6.075728 16.20942