While the chart shows Oregon as less than 30 days, the reality is that any decent Portland home that's fairly priced will be gone in a week. My last listing went live on MLS at 8:00 PM on a Saturday night. We received 10 offers by Wednesday and accepted $56,000 over the list price.
Besides the fact that the market is hot, this seller had wisely decided to have a home inspection before it went on the market, and fixed everything the inspection report turned up. I recommend the pre-listing home inspection to all my sellers. Even if you don't want to fix everything, you get the time to generate multiple estimates for the work, instead of being presented with the buyer's bid late in the standard 10-day inspection period when you can't realistically get a contractor to show up in time to get any competing estimates. It's almost like agreeing to the highest repair estimate before you even see it. Much better to have the time to get your own and either do the repairs or credit the buyer the amount of the lowest estimate.