condition	mean	min	max
4 h after light	16.271349999999998	15.408	17.1347
8 h after light	17.112299999999998	16.8326	17.392
12 h after light	17.47005	15.8835	19.0566
4 h after dark	20.0937	18.7764	21.411
8 h after dark	16.949849999999998	16.6166	17.2831
12 h after dark	18.5807	18.4763	18.6851