condition	mean	min	max
4 h after light	8.63778	8.46103	8.81453
8 h after light	5.27342	5.20314	5.3437
12 h after light	7.14202	6.90483	7.37921
4 h after dark	14.113733333333334	12.393	15.0364
8 h after dark	16.673000000000002	14.938	18.6935
12 h after dark	15.8789	14.74	17.5878