2011 - 13.2%

The 2011 13.2% is the baseline measurement.

2012 - 13.1%

The 2012 decrease to 13.1% from 2011 represents a -0.1% decrease YoY.

2013 - 14.2%

The 2013 increase to 14.2% from 2012 represents a 1.1% increase YoY.

2014 - 13.9%

The 2014 decrease to 13.9% from 2013 represents a -0.3% decrease YoY.

2015 - 11.4%

The 2015 decrease to 11.4% from 2014 represents a -2.5% decrease YoY.

2016 - 11.3%

The 2016 decrease to 11.3% from 2015 represents a -0.1% decrease YoY.

2017 - 11.8%

The 2017 increase to 11.8% from 2016 represents a 0.5% increase YoY.

2018 - 11%

The 2018 decrease to 11% from 2017 represents a -0.8% decrease YoY.

2019 - 9.4%

The 2019 decrease to 9.4% from 2018 represents a -1.6% decrease YoY.

2021 - 11.8%

The 2021 increase to 11.8% from 2019 represents a 2.4% increase YoY.

2022 - 10.4%

The 2022 decrease to 10.4% from 2021 represents a -1.4% decrease YoY.

2023 - 10.2%

The 2023 decrease to 10.2% from 2022 represents a -0.2% decrease YoY.