2011 - 21.5%

The 2011 21.5% is the baseline measurement.

2012 - 21.5%

The 2012 decrease to 21.5% from 2011 represents a 0.0% decrease YoY.

2013 - 22.8%

The 2013 increase to 22.8% from 2012 represents a 1.3% increase YoY.

2014 - 22.6%

The 2014 decrease to 22.6% from 2013 represents a -0.2% decrease YoY.

2015 - 21.2%

The 2015 decrease to 21.2% from 2014 represents a -1.4% decrease YoY.

2016 - 17.2%

The 2016 decrease to 17.2% from 2015 represents a -4.0% decrease YoY.

2017 - 15.4%

The 2017 decrease to 15.4% from 2016 represents a -1.8% decrease YoY.

2018 - 13.3%

The 2018 decrease to 13.3% from 2017 represents a -2.1% decrease YoY.

2019 - 12.6%

The 2019 decrease to 12.6% from 2018 represents a -0.7% decrease YoY.

2021 - 11%

The 2021 decrease to 11% from 2019 represents a -1.6% decrease YoY.

2022 - 11.3%

The 2022 increase to 11.3% from 2021 represents a 0.3% increase YoY.

2023 - 10.1%

The 2023 decrease to 10.1% from 2022 represents a -1.2% decrease YoY.