Form 8606 Line 2 Not Entered/Updated on Previous Year's tax forms

My Financial Advisor pointed out to me that I did not enter a value on Line 2 of my Form 8606 with my 2019 Taxes. I started making non-deductible contributions to my Traditional IRA in 2013 and every year since. In looking at my past year's 8606 (starting in 2014) the previous year's amounts were not entered on Line 2 either. 

 

My questions are

1: Do I need to file amended 8606 Forms for 2014 through 2019 or can I put the total amount on my 2020 from the previous year's contributions?  I'm thinking not, because of the contribution limits and the total amount from the past 5 years easily exceeds the limit. And that may throw a red flag.

 

2: If I do need to amendments, then it appears in reading other posts, I send in the corrected 8606 for the year with the 1040-X? 

 

3: Lastly, I've used Turbo Tax for all the years mentioned and import my info from the previous year's return. Would anyone know why the program didn't pull over Line 14 from the previous year's 8606? 

 

Thank you in advance! I appreciate any assistance or insights.