condition	mean	min	max
4 h after light	20.015050000000002	16.0911	23.939
8 h after light	12.94895	11.6529	14.245
12 h after light	16.19725	15.5837	16.8108
4 h after dark	24.0833	23.121	25.0456
8 h after dark	23.4458	22.5082	24.3834
12 h after dark	22.8357	22.1941	23.4773