code: func (r *Timing) Mean() uint32 {
  	sortedDurations := r.SortedDurations()
  	var sum time.Duration
  	for _, d := range sortedDurations {
  		sum += d
  	}
  
  	length := int64(len(sortedDurations))
  	if length == 0 {
  		return 0
  	}
  
  	return uint32(sum.Nanoseconds()/length) / 1000000
  }
docs: // Mean computes the average timing in the last 60 seconds.