condition	mean	min	max
4 h after light	17.991832	17.332561	18.651103
8 h after light	18.1322295	17.703068	18.561391
12 h after light	15.9666665	14.277462	17.655871
4 h after dark	17.025737999999997	16.718915	17.332561
8 h after dark	16.019787	15.182971	16.856603
12 h after dark	16.856603	16.856603	16.856603