condition	mean	min	max
0 h after light	20.76365	20.3021	21.2252
4 h after light	19.20295	18.9043	19.5016
8 h after light	17.30405	15.5911	19.017
4 h after dark	22.11395	21.1588	23.0691
8 h after dark	23.97685	23.8076	24.1461
12 h after dark	20.8485	18.3451	23.3519