condition mean min max 4 h after light 0.04325575 0.0 0.0865115 8 h after light 0.04730305 0.0 0.0946061 12 h after light 0.0 0.0 0.0 4 h after dark 0.076496 0.0 0.152992 8 h after dark 0.01889405 0.0 0.0377881 12 h after dark 0.03132225 0.0 0.0626445