condition mean min max 4 h after light 6.07444 4.85187 7.29701 8 h after light 11.669550000000001 10.6051 12.734 12 h after light 12.62595 10.9599 14.292 4 h after dark 13.8278 13.663 13.9926 8 h after dark 10.288799999999998 10.0422 10.5354 12 h after dark 9.866859999999999 8.92352 10.8102