Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE invoices (billing_country VARCHAR, total INTEGER)
### Question:
A list of the top 8 countries by gross/total invoice size. List country name and gross invoice size.
### Answer:
SELECT billing_country, SUM(total) FROM invoices GROUP BY billing_country ORDER BY SUM(total) DESC LIMIT 8