Oregon home sales have ballooned in recent years along with those of the nation as a whole. Annual sales volumes in the mid-Willamette Valley roughly doubled since 2001 to $2.3 billion in 2005, while booming Central Oregon volumes grew more than 200% to $2.8 billion. And Metro Portland had a record-breaking $10.6 billion 2005 sales volume. New Portland listings have held relatively steady, while closed sales have climbed, reducing inventory. The intense activity has boosted median prices during the last five years in the regions we track: 28% in the mid-Willamette Valley, 40% in Portland and 61% in Central Oregon.