condition	mean	min	max
4 h after light	14.167349999999999	12.9648	15.3699
8 h after light	13.17075	12.6415	13.7
12 h after light	11.6739	11.5259	11.8219
4 h after dark	16.29525	15.6407	16.9498
8 h after dark	18.3292	18.0042	18.6542
12 h after dark	15.6018	15.2186	15.985