condition	mean	min	max
4 h after light	15.424758	12.888331	17.961185
8 h after light	12.910904	12.48287	13.338938
12 h after light	12.4133645	11.535212	13.291517
4 h after dark	12.8488255	12.406134	13.291517
8 h after dark	13.739483	13.679553	13.799413
12 h after dark	16.47634	16.47634	16.47634