condition	mean	min	max
4 h after light	16.384294	14.479796	18.288792
8 h after light	16.93457	16.001896	17.867244
12 h after light	17.311538	13.133795	21.489281
4 h after dark	15.410719	15.374591	15.446847
8 h after dark	15.2222135	13.58945	16.854977
12 h after dark	20.738439	20.738439	20.738439