condition	mean	min	max
4 h after light	6.058573333333333	5.99365	6.10693
8 h after light	5.9260633333333335	5.780390000000001	6.0617
12 h after light	5.725396666666667	5.68495	5.803319999999999
4 h after dark	6.0808100000000005	5.99144	6.1329400000000005
8 h after dark	5.9643733333333335	5.8443	6.17828
12 h after dark	6.04165	5.91024	6.18507