condition	mean	min	max
2 h after light	17.75735	13.2262	21.095
6 h after light	15.686499999999999	12.5279	19.5235
10 h after light	19.487366666666667	11.4072	30.5171
14 h after light	19.8682	11.7574	28.9869
18 h after light	19.10835	17.0405	21.8052
2 h after dark	18.737383333333334	13.6541	23.8477