condition	mean	min	max
0 h after light	6.65793	6.11142	7.20444
4 h after light	7.690595	4.43999	10.9412
8 h after light	13.39065	10.0542	16.7271
4 h after dark	19.718249999999998	16.2123	23.2242
8 h after dark	11.955100000000002	11.2154	12.6948
12 h after dark	7.489045000000001	4.93189	10.0462