condition mean min max 0 h after light 0.983018 0.654566 1.31147 4 h after light 7.46544 2.25878 12.6721 8 h after light 1.152004 0.971388 1.33262 4 h after dark 3.061235 2.25003 3.87244 8 h after dark 0.97515 0.0 1.9503 12 h after dark 4.35899 3.92212 4.79586