That doesn't actually tell anyone if they can afford it. What sorts of things does the money go to? Salaries? Food for folks? Other obligations and contracts? I

That doesn't actually tell anyone if they can afford it. What sorts of things does the money go to? Salaries? Food for folks? Other obligations and contracts? Infrastructure? Health care? How much do they have leftover afterwards - can they meet their obligations? How much of that GDP is the government able to capture as a tax? How efficient is tax collection and what is the rate? The second, though. Fair point.