How many orders were from Hanna Moos company in 1999?
"Hanna Moos" is the CompanyName; in 1999 refer to YEAR (OrderDate) = 1999
SELECT COUNT(T2.OrderID) FROM Customers AS T1 INNER JOIN Orders AS T2 ON T1.CustomerID = T2.CustomerID WHERE STRFTIME('%Y', T2.OrderDate) = '1999' AND T1.CompanyName = 'Hanna Moos'