real climate scientists admit no rise in 10 yr, page-124

greenhart perhaps try some numbers, just note that GIA correction is an increase to the global mean sea level "rate". It in itself is like an acceleration(it would be 30mm/year/century in the wiki terms)

If you want you can also go another way.

An acceleration of 0.2mm/year/century would mean that the rate changed by 0.2mm/year over the 100 years. I.e. 0.002mm/year every year on average is the observed change. Now look at the GIA correction you are about to apply :)