condition	mean	min	max
4 h after light	4.8107999999999995	4.522069999999999	5.00603
8 h after light	5.080123333333333	4.91581	5.19516
12 h after light	5.10281	5.06899	5.15109
4 h after dark	5.163539999999999	5.10347	5.27654
8 h after dark	5.199083333333333	5.0782099999999994	5.39815
12 h after dark	5.053823333333334	4.99101	5.11083