condition mean min max 4 h after light 130.459298 118.254653 142.663943 8 h after light 184.328577 176.001288 192.655866 12 h after light 111.58796050000001 49.986376 173.189545 4 h after dark 97.7933255 91.893053 103.693598 8 h after dark 53.8928675 51.350588 56.435147 12 h after dark 52.420202 52.420202 52.420202