condition	mean	min	max
4 h after light	6.001776666666666	5.72673	6.14113
8 h after light	6.109333333333333	5.76921	6.33787
12 h after light	6.02659	5.37769	6.36994
4 h after dark	5.93498	5.54512	6.18979
8 h after dark	5.94344	5.778969999999999	6.21871
12 h after dark	5.902526666666667	5.66608	6.062130000000001