condition	mean	min	max
4 h after light	8.060079	7.989512	8.130646
8 h after light	8.620182	8.573861	8.666503
12 h after light	8.6668935	8.052232	9.281555
4 h after dark	8.2894505	7.587459	8.991442
8 h after dark	8.660736499999999	8.467296	8.854177
12 h after dark	8.769256	8.769256	8.769256