condition	mean	min	max
4 h after light	3.29435	2.98809	3.60061
8 h after light	12.71975	11.4369	14.0026
12 h after light	21.84105	20.88	22.8021
4 h after dark	22.0587	19.5338	24.5836
8 h after dark	15.74765	15.5772	15.9181
12 h after dark	9.058475	8.38017	9.73678