I am doing research into the global market proportions for three of the most popular snap-in tyre valves and I would very much appreciate your help. If you are willing, please advise what percentage of the total sanp-in valves you manufacture are TR413, TR414 and TR418. For example, 50% of all the valves you manufacture might be TR418, 8% might be TR414, and 15% might be TR413. In this case the rest would amount to 27%. Near enough is good enough at this stage and I thank you sincerely for your help with this.