condition	mean	min	max
4 h after light	17.6292	17.3867	17.8717
8 h after light	17.63175	17.6238	17.6397
12 h after light	14.71075	13.7534	15.6681
4 h after dark	17.4913	17.0083	17.9743
8 h after dark	19.691000000000003	19.125	20.257
12 h after dark	19.9365	19.9214	19.9516