Analysis of date stamps of Hunter Biden's pics and extrapolating the dates

All pics were taken from the videos posted here: https://gtv.org/web/#/UserInfo/5f9428ef7de25667c0fda196

I took the deltas of the picture numbers (PicNum) and the date-timestamp (Date-TS). This gave me the average pics taken on a day (Column K).

On average, there were 16.07 pictures taken in a day. The median number of pictures taken per day was 14.20.

Using this data, I was able to deduce that the first picture may have been taken anywhere between June 2013 to May 2016.

The last picture may have been taken anywhere between August or September 2018.

All these speculations will depend on the camera usage of the phone in question. We do not know if these pictures are from one hard-drive or all hard drives. But this gives us a starting point for analysis.