condition	mean	min	max
4 h after light	14.151756	13.038923	15.264589
8 h after light	15.701210999999999	14.712124	16.690298
12 h after light	15.0635565	12.658243	17.46887
4 h after dark	16.513279	15.264589	17.761969
8 h after dark	13.921457499999999	12.758296	15.084619
12 h after dark	17.225168	17.225168	17.225168