The unit values from phase to displacement result

Hello Everyone,

I am calculating land subsidence using Sentinel 1a. The image I use has a temporal about 3 months, the date of the image I use is 9 February 2020 and 3 May 2020. From the results I get, it show the unit in meter, do it show changes only on the date of the image which is within 3 months, or has it been calculated for one year?

Thanks

if you used “phase to displacement”, the output is normalized and referred to an entire year (mm/year or m/year)