Total number of events for which the findTimestamp() found a timestamp in the month-day-year(last) format

Example Metric Record:

json
{
   "#repo" : "humio-metrics",
   "#type" : "metrics",
   "@host" : "1",
   "@id" : "RFqPuCKcrRXVfDtkjx7v7Tys_24_1576_1714449202",
   "@ingesttimestamp" : "1714449202824",
   "@timestamp" : 1714449202792,
   "@timestamp.nanos" : "0",
   "@timezone" : "UTC",
   "count" : "0",
   "name" : "month-day-year-last-timestamp-found",
   "type" : "COUNTER"
}