I'm answer number <?=array_sum(
  preg_filter('{.* (\d+) bytes</h1.*}se','$1<159',
    split(':',
      fread(
        gzopen(
          'http://api.stackexchange.com/2.2/questions/60204/answers?pagesize=99&order=desc&sort=votes&site=codegolf&filter=!--pn9sqW9y0T',r
        ), 1e4
      )
    )
  )
)?>.