condition	mean	min	max
4 h after light	18.37114	8.98918	27.7531
8 h after light	15.941400000000002	14.0189	17.8639
12 h after light	20.01545	15.1972	24.8337
4 h after dark	28.473066666666668	19.8173	34.9701
8 h after dark	21.954366666666665	16.9763	26.7451
12 h after dark	21.5651	19.0661	25.3181