condition	mean	min	max
4 h after light	4.42273	3.85349	4.99197
8 h after light	4.584815	4.52985	4.63978
12 h after light	5.053125	4.97816	5.12809
4 h after dark	5.19768	5.11843	5.27693
8 h after dark	4.73305	4.45376	5.01234
12 h after dark	4.24484	3.83662	4.65306