Data is not available on all countries, but you can also choose other data points by clicking on the down triangle in the search bar at the top. Select search by indicator. Merchandise trade as a percentage of GDP, total tax rate, etc. are some of the other choices. Then select country.
"Enterprise Surveys provide the world's most comprehensive company-level data in emerging markets and developing economies." Search by topic (such as innovation and technology) or by economy (national reports). These surveys include all businesses, not just those measured in entrepreneurship studies.