condition	mean	min	max
4 h after light	5.9922249999999995	5.9556	6.02885
8 h after light	4.371785	4.30826	4.43531
12 h after light	4.938124999999999	4.8165	5.05975
4 h after dark	5.992675	4.96143	7.02392
8 h after dark	5.491975	5.06534	5.91861
12 h after dark	7.02183	6.95902	7.08464