condition	mean	min	max
3 h after light	17.1251	13.1774	19.8676
6 h after light	15.041670000000002	9.85501	18.7005
9 h after light	16.432066666666664	12.1214	21.1588
12 h after light	20.600275	16.6943	24.3352
3 h after dark	22.354933333333335	19.4355	25.8841
6 h after dark	19.9493	16.1783	22.4419
9 h after dark	17.0372	14.6162	19.4026
12 h after dark	15.32415	13.788	16.8603