condition	mean	min	max
4 h after light	15.7761	14.3616	17.1906
8 h after light	14.38115	13.2155	15.5468
12 h after light	15.4348	14.8273	16.0423
4 h after dark	13.853	12.4197	15.7002
8 h after dark	19.7803	17.5503	21.731
12 h after dark	14.007466666666666	11.1661	15.4767