code: public Map<String, String> getGlobalStatistics()
      {
          final Map<String, String> debugProperties = new LinkedHashMap<>();
          final ProviderStatistics providerStatistics = getCentralService().getStatsBean();
          if ( providerStatistics != null )
          {
              debugProperties.putAll( providerStatistics.allStatistics() );
          }
  
          return Collections.unmodifiableMap( debugProperties );
      }
docs: Maintains the global chai provider statistics.  All {@code com.novell.ldapchai.provider.ChaiProvider} instances
  that have their {@link ChaiSetting#STATISTICS_ENABLE} set to <i>true</i> will register statistics in
  this global tracker.
  
  @return a ProviderStatistics instance containing global statistics for the Chai API