condition	mean	min	max
4 h after light	17.11555	16.4541	17.777
8 h after light	20.3265	20.0094	20.6436
12 h after light	20.23925	20.0518	20.4267
4 h after dark	36.45155	35.4473	37.4558
8 h after dark	31.81135	31.4131	32.2096
12 h after dark	26.536299999999997	25.5689	27.5037