condition	mean	min	max
4 h after light	9.317565	7.63023	11.0049
8 h after light	7.28965	7.20226	7.37704
12 h after light	4.142125	3.70492	4.57933
4 h after dark	4.244195	3.31188	5.17651
8 h after dark	8.5425	7.31137	9.77363
12 h after dark	8.110305	7.7219	8.49871