condition	mean	min	max
4 h after light	6.365495	6.06013	6.67086
8 h after light	5.822095	5.67343	5.97076
12 h after light	7.415315	6.98094	7.84969
4 h after dark	10.41113	9.94596	10.8763
8 h after dark	9.748719999999999	9.7189	9.77854
12 h after dark	8.86644	8.50122	9.23166