Express Entry NOC Codes

I am in the process of applying for express entry but i am confused and stuck with NOC codes. I come up with 3.8yrs of experience in 3 different roles out of which 2 job roles fall under 2 different NOC codes and the rest doesn’t fall under any of the codes. So i just want to check if i can claim the overall experience of 3.8yrs or only the ones which fall under NOC because my CRS is dropping down if i give only 1 or 2yrs of experience. Please suggest and below is the break down of my work exp.

8months - 1431
22months - 1223