Get the release year, country, and highest budget spent making a film for each year, for each country. Sort your results by release year and country.
Select country, release_year, max(budget) from films group by release_year, country order by release_year, country
Select country, av(budget) as avg_budget, avg(gross) as avg_gross from films group by country having count(title) > 10 order by country limit 5