Screenshot: https://db.tt/O22dCVA5
As shown in the Screenshot in Dropbox, I want to create a new column that evaluates the amount of releases for a given year. So in the end I create a column for 2014, 2015, 2016, 2017, ...
Each of the columns shall contain the amount of releases per year. Each release has a complete release date.
I can't figure out how to create an additional column in the Products Table to show the amount of releases per year.
I need this for a KPI Card to indicate the increase or decrease regarding to the last year.
Thanks in advance for your help 