condition	mean	min	max
4 h after light	7.518720500000001	7.145207	7.892234
8 h after light	7.695157	7.446495	7.943819
12 h after light	7.469374	7.469374	7.469374
4 h after dark	7.2108735	6.993184	7.428563
8 h after dark	7.408649499999999	6.609884	8.207415
12 h after dark	6.759453	6.759453	6.759453