condition	mean	min	max
4 h after light	4.007715	3.64281	4.37262
8 h after light	2.819315	2.50318	3.13545
12 h after light	3.398465	2.94333	3.8536
4 h after dark	4.81564	4.13265	5.82575
8 h after dark	4.95223	4.62056	5.17499
12 h after dark	3.6839066666666667	1.82918	4.84429