My 2015 tax return is not available on my PC. It was removed when my PC was repaired. How do I obtain my 2015 return that was filed through turbo tax last year?

My goal is to save time and effort with filing my 2016 return through turbo tax.  I do have my 2014 returns in PDF on my PC.  Is there any way to pull in the 2015 returns from the IRS filing done last year via turbo tax, or will using the data from the 2014 tax return be of any use?