condition	mean	min	max
4 h after light	19.0287	14.6555	23.4019
8 h after light	1.21462	1.06487	1.36437
12 h after light	1.00231	0.59161	1.41301
4 h after dark	1.431677	0.894561	2.14784
8 h after dark	28.4649	28.2437	28.605
12 h after dark	11.1431	10.2947	11.6572