condition	mean	min	max
4 h after light	18.6480095	15.502011	21.794008
8 h after light	23.4773125	21.794008	25.160617
12 h after light	18.4131745	17.850242	18.976107
4 h after dark	23.610498	23.309698	23.911298
8 h after dark	29.325497499999997	21.895628	36.755367
12 h after dark	12.425621	12.425621	12.425621