condition	mean	min	max
4 h after light	0.0	0.0	0.0
8 h after light	0.0	0.0	0.0
12 h after light	0.0	0.0	0.0
4 h after dark	0.016058	0.0	0.032116
8 h after dark	0.02414135	0.0	0.0482827
12 h after dark	0.0	0.0	0.0