condition	mean	min	max
4 h after light	17.3597915	14.988991	19.730592
8 h after light	18.1983115	17.973056	18.423567
12 h after light	17.3313985	17.155434	17.507363
4 h after dark	21.443733	19.246687	23.640779
8 h after dark	18.1388	17.854033	18.423567
12 h after dark	23.323005	23.323005	23.323005