Hi everyone, I recently got this practice question asking the market size of professional camera in the US. Let's assume here that professional camera means camera used strictly in movies production. I was trying to estimate it by finding the total amount of movie projects in the US in a year multiplied by the average camera needed per project. To find the total amount of movie projects per year, I was trying to estimate through finding how many movies a cinema plays in a year and what percentage of them are made one year before, but I realized this was a poor proxy to find the total number of projects, but honestly I can't think of any other way. Would really appreciate if you can give your thoughts on this, thanks!