What pattern does the Solar System trace relative to the Milky Way's mid-plane during its orbit?

Answer

It bobs up and down, tracing a slight sine wave

Due to its vertical displacement, the Solar System travels in and out of the densest concentrations of gas and dust, tracing a slight sine wave pattern as it orbits the core.

What pattern does the Solar System trace relative to the Milky Way's mid-plane during its orbit?
galaxyastronomydisksolar systemMilky Way