condition	mean	min	max
4 h after light	5.82125	5.66743	6.03975
8 h after light	5.74537	5.71278	5.8102
12 h after light	5.541943333333333	5.49261	5.62121
4 h after dark	5.701103333333333	5.60342	5.7838199999999995
8 h after dark	5.60019	5.34189	5.83782
12 h after dark	5.635296666666667	5.52056	5.69855