condition	mean	min	max
4 h after light	2.159995	1.29172	3.02827
8 h after light	1.654355	1.36474	1.94397
12 h after light	2.054055	1.98183	2.12628
4 h after dark	2.83495	2.71846	3.05345
8 h after dark	3.26993	2.75364	3.76346
12 h after dark	2.3189866666666665	2.14424	2.55665