condition	mean	min	max
4 h after light	15.8184	15.1789	16.4579
8 h after light	17.337600000000002	17.2097	17.4655
12 h after light	17.13225	16.494	17.7705
4 h after dark	24.01555	21.7832	26.2479
8 h after dark	23.042099999999998	23.0302	23.054
12 h after dark	21.25265	20.9775	21.5278