condition	mean	min	max
4 h after light	9.724491	7.960173	11.488809
8 h after light	8.1183555	7.960173	8.276538
12 h after light	8.0439045	7.960173	8.127636
4 h after dark	8.093497	7.374413	8.812581
8 h after dark	7.941291	7.868365	8.014217
12 h after dark	8.539163	8.539163	8.539163