condition	mean	min	max
0 h after light	7.3352450000000005	7.2333	7.43719
4 h after light	8.011054999999999	7.45229	8.56982
8 h after light	7.326235	6.80498	7.84749
4 h after dark	9.09058	8.64593	9.53523
8 h after dark	9.49465	9.07406	9.91524
12 h after dark	7.582409999999999	6.88163	8.28319