I was wondering what would be the best way to answer the question "What is the market size of cloud-based data storage systems". I suppose an approach could be picking a geography (e.g. the UK), estimating the number of companies, the % of companies that use cloud-based storage systems and what is their average monthly/yearly spend. However, estimating the number of companies and the pricing looks complicated - do you have any suggestions on that, or better approaches in mind? Many thanks!