condition	mean	min	max
4 h after light	5.29697	5.235519999999999	5.35228
8 h after light	5.32457	5.2445699999999995	5.46331
12 h after light	5.275736666666667	5.13906	5.36845
4 h after dark	5.27112	5.1675	5.4063099999999995
8 h after dark	5.14197	4.9396	5.26361
12 h after dark	5.14761	5.0833	5.24774