condition	mean	min	max
4 h after light	22.73255	19.9661	25.499
8 h after light	17.63895	16.1956	19.0823
12 h after light	16.64665	15.7358	17.5575
4 h after dark	17.49543333333333	16.7933	18.5797
8 h after dark	21.1954	20.4326	21.9035
12 h after dark	20.90213333333333	19.9489	21.698