Number fractions and mass fractions for the Z elements through Ni are given for GS98 below.  Heavier elements are included in the computation of the fractions, but are a very small part of the 6th decimal place.  Li, Be, B are not included due to their small abundances too.

GS98  
Element # frac mass frac
c 0.246023 0.172062
n 0.061798 0.050417
o 0.502315 0.468017
f 0.000022 0.000025
ne 0.089326 0.104970
na 0.001552 0.002078
mg 0.028247 0.039988
al 0.002296 0.003607
si 0.026976 0.044126
p 0.000270 0.000487
s 0.011775 0.021991
cl 0.000142 0.000292
ar 0.001866 0.004342
k 0.000100 0.000228
ca 0.001663 0.003882
sc 0.000001 0.000002
ti 0.000065 0.000181
v 0.000008 0.000023
cr 0.000364 0.001102
mn 0.000252 0.000805
fe 0.023495 0.076413
co 0.000060 0.000207
ni 0.001321 0.004517