code: private void reportOnLastValues() throws IOException {
  		Collection<JRobin> jrobins = collector.getDisplayedCounterJRobins();
  		for (final JRobin jrobin : jrobins) {
  			printDouble(MetricType.GAUGE, "last_value_" + camelToSnake(jrobin.getName()),
  					"javamelody value per minute", jrobin.getLastValue());
  		}
  
  		jrobins = collector.getDisplayedOtherJRobins();
  		for (final JRobin jrobin : jrobins) {
  			printDouble(MetricType.GAUGE, "last_value_" + camelToSnake(jrobin.getName()),
  					"javamelody value per minute", jrobin.getLastValue());
  		}
  	}
docs: Includes the traditional 'graph' fields from the 'lastValue' API.
  
  These fields are summary fields aggregated over `javamelody.resolutions-seconds` (default 60), which
  is normally an odd thing to pass to Prometheus.  Most (all?) of these can be calculated inside
  Prometheus from the Collector stats.
  
  Note: This lookup seems to take the longest execution time -- 5-10ms per request due to JRobin reads.
  
  Disabled by default.  To enable set the 'prometheus-include-last-value' property to 'true'.
  
  @throws IOException e