The smaller the interval the more accurate the economic trends are. “ average” is in itself insignificant if it can’t be used as an inference as a predictor of future events. The larger the interval and the farther back you include numbers, the less relevant they are. That Obama came in with a high unemployment makes it silly to include it as a measure if his economic success. Once Obamacare and his budget was passed, both the state of the economy in general and for millions gradually improved. The biggest complaint from conservatives was, it didn’t improve fast enough, which is ridiculous. That’s like a home owner who burns his house down then complains because the carpenter didn’t replace it as fast as he burned it down.
Nothing wrong with trends ? Seriously, they are a much better measure of the success of an admin.
They start where the previous admin left them…that seems pretty obvious. They can’t start from ground zero if the previous admin left you with billions in deficits!