condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.102073 0.0 0.204146 8 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.101137 0.0 0.202274