condition	mean	min	max
4 h after light	8.24091	6.90074	9.58108
8 h after light	6.4312450000000005	6.16331	6.69918
12 h after light	5.30092	5.27189	5.32995
4 h after dark	6.73846	6.565	7.07929
8 h after dark	8.414046666666666	7.35049	9.28155
12 h after dark	9.49675	9.33219	9.58462