Number fractions and mass fractions for the Z elements through Ni are given for GN93 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.
 

GN93  
Element # frac mass frac
c 0.245538 0.173312
n 0.064583 0.053177
o 0.513001 0.482398
f 0.000025 0.000028
ne 0.083199 0.098675
na 0.001480 0.001999
mg 0.026310 0.037590
al 0.002042 0.003238
si 0.024554 0.040536
p 0.000195 0.000355
s 0.011223 0.021154
cl 0.000219 0.000456
ar 0.002291 0.005380
k 0.000091 0.000210
ca 0.001585 0.003734
sc 0.000001 0.000003
ti 0.000072 0.000204
v 0.000007 0.000021
cr 0.000324 0.000989
mn 0.000170 0.000548
fe 0.021884 0.071831
co 0.000058 0.000199
ni 0.001148 0.003963