This is the way I play it.
I am almost 100% sure that these parts are correct.

r=ring
~=vibrate

Intro:
G --19-18-17-16-------19---------|
D --------------17-16------------|
A ----------------------17-16~~~~|
E -------------------------------|   x8

G ----------------------------------|
D ----------------------------------|
A ---------------------------------3|
E ---0-3-2-1-0-3-2-1-0-3-2-1-0-2-3--| x8

                       becomes verse after intro
G ---------/-------------------------------------------------------------\
D ---------|-.---------------------------------------------------------.-|
A ---------|-.---------------------------------------------------------.-|
E --0r-----\---0r---------3r-------3------0r---------3r---------8---5----/
  |         \                    play two times                         /
   \                 interlude after intro                            /

   /                      becomes chorus after intro                  \
G ---------------------------------------------------------------------|
D ---------------------------------------------------------------------|
A -----------------------------1----------------------------------1----|
E ---0-0-0-3--0-0-0-5--0-0-0-3---2--0-0-0-3--0-0-0-5--0-0-0-3-0-0---2-1| x2
                                                               |
                                                   two opens are faster than other notes
verse  x2
chorus x2
interlude x2
verse  x2
chorus  x2
then   x10 starts to fade at around 6
    |
  \ |/
   \/

Outro:
G---------------------------|
D---------------------------|
A---------------------------|
E---0r----2-2-0r----2-2-3-3-|