condition	mean	min	max
4 h after light	23.193288	19.593625	26.792951
8 h after light	21.919266999999998	19.482839	24.355695
12 h after light	18.4444665	17.65023	19.238703
4 h after dark	17.247129	16.381582	18.112676
8 h after dark	16.856157500000002	15.002139	18.710176
12 h after dark	25.152129	25.152129	25.152129