condition	mean	min	max
4 h after light	2.270645	0.0	4.54129
8 h after light	9.89925	4.9662	14.8323
12 h after light	9.796675	6.00715	13.5862
4 h after dark	0.0	0.0	0.0
8 h after dark	7.899585	7.86465	7.93452
12 h after dark	5.85865	0.0	11.7173