We are not aware of any existing “database” that have these declared values (this is due to testing being conducted at various internal and external sites, without a single overseeing body and various updates in test data over the years). Though, EU user manual should have these values reported. I’d recommend searching through the manuals here: https://service.dewalt.co.uk/DEWALT/GB/en-GB/ 

We have vibration emission declaration values that we publish in our EU user manuals for European SKUs, but these values are determined by measurements taken during a single application in a controlled manner guided by EN standards. These values may not be indicative of the actual vibration environment that an operator could be exposed to while operating the tool. Variables such as application, accessory type/condition, and user-bias have a huge effect on vibration, which is not accounted for in our published values.

If you are interested in understanding vibration exposure on the jobsite, I would recommend that you have a consultant come out to record measurements during a workday to get a true idea of vibration exposure based on the specific applications at their site.