condition mean min max 4 h after light 12.1474935 12.003948 12.291039 8 h after light 11.464911 11.148857 11.780965 12 h after light 12.314909499999999 11.780965 12.848854 4 h after dark 13.344696500000001 12.960464 13.728929 8 h after dark 11.046503999999999 10.312043 11.780965 12 h after dark 12.172061 12.172061 12.172061