This seems to ignore confounding factors: - divorce/single head-of-household rate. Over 75 probably has a much higher marriage rate than younger. If you divide

This seems to ignore confounding factors: - divorce/single head-of-household rate. Over 75 probably has a much higher marriage rate than younger. If you divide that wealth into two households, how does it look? - shift to private ownership of retirement accounts. In 1989, pension plans, etc., were much more common. These wouldn't count as personal wealth as they are income-maintenance, rather than an asset.