condition	mean	min	max
4 h after light	4.384416666666667	2.90388	5.90509
8 h after light	3.2536	1.0914	5.44127
12 h after light	3.3108833333333334	2.13156	4.41774
4 h after dark	6.477853333333333	4.88446	7.68933
8 h after dark	6.42804	4.22567	7.71369
12 h after dark	5.2347	4.54626	6.11045