condition mean min max 0 h after light 9246.225 8098.05 10394.4 2 h after light 10718.65 10124.3 11313.0 4 h after light 12145.25 10909.9 13380.6 8 h after light 12521.0 11201.7 13840.3 12 h after light 6479.985000000001 6055.01 6904.96 2 h after dark 6776.365 6770.93 6781.8 4 h after dark 8355.314999999999 7995.82 8714.81 8 h after dark 5924.285 5358.51 6490.06 12 h after dark 6854.305 6752.38 6956.23