$18 == "" {printf("%-10s  %-30s %5d %#10.1f %#10.1f %#10.1f %#10.1f \n",$17,$1,$2,$4,$5,$6,$7)}

$18 != "" {printf("%-10s  %-30s %5d %#10.1f %#10.1f %#10.1f %#10.1f <a href=\"../stream_mail/%s\">data</a>\n",$17,$1,$2,$4,$5,$6,$7,$18)}