condition mean min max 0 h after light 17.1811 15.3984 18.9638 2 h after light 18.92705 17.5236 20.3305 4 h after light 15.87505 14.8525 16.8976 8 h after light 14.603200000000001 14.1945 15.0119 12 h after light 17.2718 14.6241 19.9195 2 h after dark 17.2168 15.0297 19.4039 4 h after dark 15.4583 13.3936 17.523 8 h after dark 16.2267 14.5485 17.9049 12 h after dark 17.59185 17.2259 17.9578