condition mean min max 4 h after light 0.071126 0.0 0.142252 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.123031 0.0 0.246062 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0