private void incrementAgentCount(Map<String, MutableInt> agentMap, String region) {
		if (agentMap.containsKey(region)) {
			agentMap.get(region).increment();
		}
	}
Get the available agent count map in all regions of the user, including
the free agents and user specified agents.

@param userId current user id
@return user available agent count map
ngrinder-controller/src/main/java/org/ngrinder/agent/service/AgentService.java