condition	mean	min	max
4 h after light	8.8339625	8.263064	9.404861
8 h after light	8.943156	8.884565	9.001747
12 h after light	8.5939935	7.911272	9.276715
4 h after dark	8.6675345	8.6363	8.698769
8 h after dark	9.077392	7.47796	10.676824
12 h after dark	8.698769	8.698769	8.698769