condition	mean	min	max
4 h after light	16.1749585	15.617751	16.732166
8 h after light	19.6701305	17.476023	21.864238
12 h after light	20.722596000000003	16.34673	25.098462
4 h after dark	29.4101145	19.263588	39.556641
8 h after dark	32.517436000000004	20.727708	44.307164
12 h after dark	15.382957	15.382957	15.382957