2011 - 9.2%

The 2011 9.2% is the baseline measurement.

2012 - 12.5%

The 2012 increase to 12.5% from 2011 represents a 3.3% increase YoY.

2013 - 13.7%

The 2013 increase to 13.7% from 2012 represents a 1.2% increase YoY.

2014 - 12.2%

The 2014 decrease to 12.2% from 2013 represents a -1.5% decrease YoY.

2015 - 12.9%

The 2015 increase to 12.9% from 2014 represents a 0.7% increase YoY.

2016 - 10.6%

The 2016 decrease to 10.6% from 2015 represents a -2.3% decrease YoY.

2017 - 9.7%

The 2017 decrease to 9.7% from 2016 represents a -0.9% decrease YoY.

2018 - 12.3%

The 2018 increase to 12.3% from 2017 represents a 2.6% increase YoY.

2019 - 11.4%

The 2019 decrease to 11.4% from 2018 represents a -0.9% decrease YoY.

2021 - 6.9%

The 2021 decrease to 6.9% from 2019 represents a -4.5% decrease YoY.

2022 - 11%

The 2022 increase to 11% from 2021 represents a 4.1% increase YoY.

2023 - 9.2%

The 2023 decrease to 9.2% from 2022 represents a -1.8% decrease YoY.