condition	mean	min	max
0 h after light	6.3353850000000005	5.91865	6.75212
4 h after light	6.20336	6.1718	6.23492
8 h after light	11.49435	11.2288	11.7599
4 h after dark	8.792785	7.46037	10.1252
8 h after dark	8.3739	7.32697	9.42083
12 h after dark	5.35035	5.22197	5.47873