condition	mean	min	max
4 h after light	17.100906000000002	15.440891	18.760921
8 h after light	16.3076625	15.374591	17.240734
12 h after light	14.51847	13.74274	15.2942
4 h after dark	16.253873	15.440891	17.066855
8 h after dark	14.379623500000001	13.931347	14.8279
12 h after dark	19.04552	19.04552	19.04552