I have several files to fill in with data about UK, US, Europe and developed world population. This project is about transport data only (file attached ), cells marked with green are the ones to fill in. Data doesn't have to be 100% accurate, but it has to look like one. E.g. if there isn't accurate data for averate property price in some region, it could simply be projected based on income in that region comparing to overall average income. Sources and references, or explanations how data is generated/projected must be provided. Project will be broken down into several milestones to ensure quality.