Section VIII-Do-It-Yourself Market Outlet Performance RETAIL AUTO PARTS STORES DO-IT-YOURSELF PRODUCT SHARE 50.7% 51.4% 50.9% 2014 2015 2016 2017 Product Share at User-Price 46.7% 50.3% 2007 RETAIL AUTO PARTS STORES DO-IT-YOURSELF AVERAGE ANNUAL PRODUCT CHANGE 2007 - 2017 Retail Auto Parts Stores All Other DIY Outlets 1.40% -0.28% Total DIY Market 0.52% % Decrease Average Annual Product Change at User-Price © 2018 by Lang Marketing Resources, Inc. 101 www.langmarketing.com % Increasehttp://www.langmarketing.com