A sweet year for Interactive, other stocks:
Interactive Intelligence Inc. this past summer finally rebounded to $13, its initial public offering price seven years ago. Then it kept going. By year-end, shares of the Indianapolis-based software maker were trading around $21. For the year, Interactive shares appreciated 311 percent, making it the top-performing stock in 2006-by far. But it was an outstanding year for many Indiana companies, as their shares climbed in step with the national market indexes. In 2006, the Dow Jones Industrial Average advanced 16…