condition mean min max 4 h after light 124.102031 100.964081 147.239981 8 h after light 126.886854 123.364913 130.408795 12 h after light 153.7329425 139.782101 167.683784 4 h after dark 175.258037 131.976325 218.539749 8 h after dark 190.1287355 176.001288 204.256183 12 h after dark 212.128857 212.128857 212.128857