You have to look at the ticket creation type in htblhistory (check the htblhistorytypes table for more info) to get this data. There are currently 3 types: ticket created (13), ticket created and assigned (31) and duplicated (39). The following is an example for tickets created in 2016:
SELECT htblhistory.date, htblhistory.ticketid, htblusers.name FROM htblhistory INNER JOIN htblusers ON htblusers.userid = htblhistory.userid
WHERE (htblhistory.typeid = 13 OR htblhistory.typeid = 31 OR htblhistory.typeid = 39) AND
(htblhistory.date >= CAST('2016-01-01 00:00:01' as datetime) AND htblhistory.date < CAST('2017-01-01 00:00:01' as datetime))
ORDER BY htblhistory.date