Source data is at http://sealevel.colorado.edu/ The graph shows an average rise of 3.2 mm / year. You can download the data in ASCII format, suitable for plotting at http://sealevel.colorado.edu/f...
Note that this includes a fudge-factor called GIS (Glacial Isostatic Adjustment). They give a long-winded explanation. tl;dr they've added a 10% fudge factor. From http://sealevel.colorado.edu/c...
> We apply a correction for GIA because we want our sea level time series
> to reflect purely oceanographic phenomena. In essence, we would like
> our GMSL time series to be a proxy for ocean water volume changes.
> This is what is needed for comparisons to global climate models, for
> example, and other oceanographic datasets.
So they talk out of one side of their mouths about how much sea level is rising. Out of the other side of their mouth, they admit that their numbers aren't really sea level rise.
Another question... what type of effing idiot approves nuclear reactors located such that a sealevel rise of a few inches, let alone a few feet, would cause problems? Anybody ever heard of tsunamis (like at Fukushima)? They're rarer in the Atlantic, but they do happen.