List the number of invoices from the US, grouped by state.
CREATE TABLE invoices (billing_state VARCHAR, billing_country VARCHAR)
SELECT billing_state, COUNT(*) FROM invoices WHERE billing_country = "USA" GROUP BY billing_state
### Context: CREATE TABLE invoices (billing_state VARCHAR, billing_country VARCHAR) ### Question: List the number of invoices from the US, grouped by state. ### Answer: SELECT billing_state, COUNT(*) FROM invoices WHERE billing_country = "USA" GROUP BY billing_state