2011 - 21%

The 2011 21% is the baseline measurement.

2012 - 21.5%

The 2012 increase to 21.5% from 2011 represents a 0.5% increase YoY.

2013 - 24.3%

The 2013 increase to 24.3% from 2012 represents a 2.8% increase YoY.

2014 - 22.1%

The 2014 decrease to 22.1% from 2013 represents a -2.2% decrease YoY.

2015 - 26.1%

The 2015 increase to 26.1% from 2014 represents a 4.0% increase YoY.

2016 - 19.5%

The 2016 decrease to 19.5% from 2015 represents a -6.6% decrease YoY.

2017 - 21.8%

The 2017 increase to 21.8% from 2016 represents a 2.3% increase YoY.

2018 - 22.8%

The 2018 increase to 22.8% from 2017 represents a 1.0% increase YoY.

2019 - 23.4%

The 2019 increase to 23.4% from 2018 represents a 0.6% increase YoY.

2021 - 18%

The 2021 decrease to 18% from 2019 represents a -5.4% decrease YoY.

2022 - 22.7%

The 2022 increase to 22.7% from 2021 represents a 4.7% increase YoY.

2023 - 19.6%

The 2023 decrease to 19.6% from 2022 represents a -3.1% decrease YoY.