condition	mean	min	max
4 h after light	16.21905	16.0654	16.3727
8 h after light	17.5103	17.2152	17.8054
12 h after light	19.521700000000003	19.2251	19.8183
4 h after dark	22.05305	20.6112	23.4949
8 h after dark	25.7986	24.9943	26.6029
12 h after dark	21.52595	21.4103	21.6416