condition	mean	min	max
4 h after light	8.1763665	8.091426	8.261307
8 h after light	8.6351635	8.573861	8.696466
12 h after light	9.0990255	8.156289	10.041762
4 h after dark	8.067602	7.561343	8.573861
8 h after dark	8.94474	8.920071	8.969409
12 h after dark	8.682661	8.682661	8.682661