Odds of Selling

In 2011, 8 units came on to the market (green), 1 was withdrawn (red) and 5 were sold (purple).
In 2012, 8 units came on to the market (green) again, 2 were withdrawn (red) and 7 were sold (purple).

Essentially, we can see that supply has been consistent and demand is increasing (up 40%).  This should put upward pressure on price