Unfortunately, "My 2018 Wrapped" started this year so it's not possible to access previous years' statistics. However, you can always check "Your Top 2017 (or other years) songs" playlist in the "Made for You" section of your library.
Hope this helps and let me know if you have any other questions!
Thanks for posting here 🙂
Currently there is no option to access your Wrapped statistics from previous years.
As @Jose_M mentioned you can find "Your Top 2017" (or for other years) songs when you click on Made for You under the Your Library section.
If you want to find more information about your streaming habits, you can click here.