Statista is one of the world's largest statistical and market data platforms, with access to nearly 2 million statistics, forecasts, documentation, reports, and infographics on 80,000 topics from more than 22,500 sources.

The platform combines economic data, consumer perspectives, opinion polls, and demographic trends. 
All data can be downloaded in 4 different formats (PNG, PDF, XLS, PPT) in seconds. Every student, lecturer, and employee has the right to publish and use the data (useful, e.g., during a presentation at a conference). It also includes an automatic citation output.