We don't currently purge price history but for performance reasons we only let you graph up to three (3) years of data.
If you have specific interest in data beyond that, please contact us at support@notifyprice.com!
As of 9/23/2023 we have 15.94 million price points in our database.
An example of what we can do with all that data is to calculate the US inflation rate over the past year: -6.98%