Not so, because of filtering... [1] Adding new stock at the top makes existing stock more affordable. It's a gradient - not a age-based scale. [1] http://city

Not so, because of filtering... [1] Adding new stock at the top makes existing stock more affordable. It's a gradient - not a age-based scale. [1] http://cityobservatory.org/what-filtering-can-and-cant-do/ http://cityobservatory.org/what-filtering-can-and-cant-do/