A line plot showing 10 points connected by a black line. The horizontal axis spans from 2009 to just shy of 2021 (labeled Date). The vertical axis spans 2% to 16% and is labeled “Percentage”. The data around 8% in 2009, descends to 5% by 2012, then rises to nearly 16% in 2018, before declining to nearly 2% in 2022.

This time a read line is also included which more smoothly interpoates between the lines.