condition mean min max 4 h after light 179.6376 152.9924 199.7516 8 h after light 83.80376 55.3596 126.6477 12 h after light 88.20401 72.64841 114.1303 16 h after light 202.69566666666665 198.6404 205.1888 4 h after dark 251.75803333333334 218.1739 287.0104 8 h after dark 166.83616666666666 155.3964 186.6509