static void display_metrics(const unordered_set<Record>& people)
{
	cout << "size: " << people.size() << endl;
	cout << "bucket_count: " << people.bucket_count() << endl;
	cout << "max_bucket_count: " << people.max_bucket_count() << endl;
	cout << "load_factor: " << people.load_factor() << endl;
	cout << "max_load_factor: " << people.max_load_factor() << endl;
	for (size_t i = 0; i < people.bucket_count(); ++i)
		if (people.bucket_size(i) != 0 )
			cout << "    bucket_size(" << i << "): " << people.bucket_size(i) << endl;
}