condition mean min max 4 h after light 10.05471 9.97295 10.09758 8 h after light 10.04878 9.96836 10.13466 12 h after light 10.174666666666667 10.12337 10.23555 4 h after dark 10.178676666666666 10.13303 10.2535 8 h after dark 10.18891 10.04053 10.268469999999999 12 h after dark 10.08761 10.02397 10.17328