Interest rates keep going up. Sub-prime lending has been cut back. The rest of the country is watching housing values drop. In Austin, however, it's a very different story.May real estate statistics were released today and the numbers show a surprisingly strong market. According to the Office of Federal Housing Enterprise Oversight, housing prices in Austin are up 10% so far this year. According to MLS statistics released by the Austin Board of Realtors, the average number of days on market in May was just 55 days and the median sales price was $183K. As we've . . .