condition	mean	min	max
4 h after light	24.457061500000002	20.985522	27.928601
8 h after light	20.8219725	16.81605	24.827895
12 h after light	16.1656645	15.80823	16.523099
4 h after dark	22.0130795	20.32601	23.700149
8 h after dark	25.0969135	19.631591	30.562236
12 h after dark	18.494553	18.494553	18.494553