condition mean min max 4 h after light 10.1948695 9.368883 11.020856 8 h after light 12.192626 12.064417 12.320835 12 h after light 11.620188500000001 11.17596 12.064417 4 h after dark 11.633983 10.879028 12.388938 8 h after dark 13.562493499999999 12.164764 14.960223 12 h after dark 11.74025 11.74025 11.74025