Hi!

I have a variable called year in my dataset but this contains just the year 2006, 2009, 2011, 2013, 2015 and 2017. I want to aggregate intermediate years but i do not know how, the other variables have to have an average in those years.

Example: I have 2006 and 2009 in years and i have population to theese years. So, i want to aggregate the intermediate years and make an average from this population in the intermediate years.

I would be grateful if you can help me.
Thanks!