/**
  * Get the Min of all the stats that are watched, for all the stats added with add() since the
  * last call to clear() in JSON.
  *
  * @return The Min of all the stats since last clear() in JSON.
  */
 public String getMinJSON() {
   String str =
       String.format(
           FakeUserStats.jsonMediaStreamStatsTemplate,
           -1, // ssrc not needed here
           downloadJitterMs.getMin(),
           downloadPercentLoss.getMin(),
           downloadRateKiloBitPerSec.getMin(),
           jitterBufferDelayMs.getMin(),
           jitterBufferDelayPackets.getMin(),
           nbDiscarded.getMin(),
           nbDiscardedFull.getMin(),
           nbDiscardedLate.getMin(),
           nbDiscardedReset.getMin(),
           nbDiscardedShrink.getMin(),
           nbFec.getMin(),
           nbPackets.getMin(),
           nbPacketsLost.getMin(),
           nbReceivedBytes.getMin(),
           nbSentBytes.getMin(),
           packetQueueCountPackets.getMin(),
           packetQueueSize.getMin(),
           percentDiscarded.getMin(),
           rttMs.getMin(),
           uploadJitterMs.getMin(),
           uploadPercentLoss.getMin(),
           uploadRateKiloBitPerSec.getMin());
   return str;
 }