condition	mean	min	max
4 h after light	17.8643395	17.165725	18.562954
8 h after light	17.7495735	17.09654	18.402607
12 h after light	17.526052	17.165725	17.886379
4 h after dark	14.293345500000001	11.941523	16.645168
8 h after dark	16.857525000000003	15.996883	17.718167
12 h after dark	21.169196	21.169196	21.169196