newgraph
   clip
   border

xaxis
   size 2
   hash_labels fontsize 7
   label : Time
   no_auto_hash_marks no_auto_hash_labels
   shell : gawk '((NR % 12) == 0) {printf("hash_at %d hash_label at %d : %s/%s\n", NR, NR, 0+substr($1, 3, 2), substr($1, 1, 2))}' 12.dat

yaxis
   size 1.75
   label : % growth

newcurve
   linetype solid
   linethickness 2.0
   marktype none
   label : WPI
   pts
        shell : gawk '(NR>1) {print NR" "$3}' 12.dat

newcurve
   linetype dashed
   marktype none
   label : M3
   pts
        shell : gawk '(NR>1) {print NR" "$5}' 12.dat

legend defaults
   font Times-Italic x 10 y 13