I have used the below query to check our Production Database Autogrowth events so that we can set to a value which is much more realistic than the current value of 200 mb , unrestricted for mdf file and 10 % Restricted to 2048 gb for ldf file.
The current version of our Database is SQL Server 2012 RTM Standard Version and we are managing it through AWS RDS, the total disk space is 2TB.
When I have used the trace file query ,it shows me data only from 08052018 as you can see in the screenshot attached[![Auto grow data ][1]][1]

Can anyone explain why am i seeing data only from 08052018 and not earlier to that?

  [1]: https://i.sstatic.net/SSp1x.png