Insert into SQL Table only when Table is First Created?

[Extra]

Hello,

I'm trying to add default values to my SQLite table when it first gets created using and INSERT statement.
Right now, every time I run the program the default values keep getting inserted into the table. So now I have 10 rows of the same values.

Is there a way to program this so the values only get inserted when the table is first created (Table does not exist), and if the table does exist, don't insert those values because they're already there.

Thanks in advance

This is what I have:

#----------------------------------------------------------------------------------------------
#                          Create Category Database
#----------------------------------------------------------------------------------------------
def createCategoryDatabase():
        #Create a database (users.db)
        connection = sqlite3.connect("categories.db")
        cursor = connection.cursor()
 
        table = """CREATE TABLE IF NOT EXISTS Categories
                (ID INTEGER PRIMARY KEY  AUTOINCREMENT,
                Category            TEXT    NOT NULL,
                Low_Quantity_Value  INT     NOT NULL);"""
 
        #Execute the creation of the table
        cursor.execute(table)
        #print("The database has been created")
        #Commit the changes
        connection.commit()
        
        #Add a default category
        cursor.execute('''
        insert into Categories (Category, Low_Quantity_Value)
        values ('N/A','0')
        ''')
        connection.commit()
        
        #Close the connection
        connection.close() 
#----------------------------------------------------------------------------------------------