condition	mean	min	max
0 h after light	8.65945	8.26265	9.05625
4 h after light	15.149899999999999	13.8409	16.4589
8 h after light	15.0238	11.8266	18.221
4 h after dark	22.097749999999998	17.1158	27.0797
8 h after dark	17.9037	15.752	20.0554
12 h after dark	11.514619999999999	6.13864	16.8906