condition	mean	min	max
4 h after light	19.7615825	15.998201	23.524964
8 h after light	19.806203500000002	18.91797	20.694437
12 h after light	25.2931855	20.552597	30.033774
4 h after dark	18.500532999999997	17.874737	19.126329
8 h after dark	18.6094175	18.300865	18.91797
12 h after dark	17.825797	17.825797	17.825797