condition	mean	min	max
4 h after light	8.722820500000001	6.932727	10.512914
8 h after light	7.8564975	7.490009	8.222986
12 h after light	7.91617	7.332106	8.500234
4 h after dark	8.2149375	7.793575	8.6363
8 h after dark	8.7071355	8.303831	9.11044
12 h after dark	8.303831	8.303831	8.303831