Every month the Labor Department releases its monthly payrolls report, which, Jim Cramer told his "RealMoney" radio show listeners on Friday, is the most important statistic for the stock market. And the market got a "Goldilocks" number Friday -- not so hot that it would force the Federal Reserve to raise interest rates a lot, and not so cold that it would put the freeze on earnings, he said. The proof: the Dow jumped 100 points after the number was released, he said. The unemployment rate held pretty steady at 4.8%, meaning that five people out of every 100 are without jobs, Cramer said. But even though the number looked robust and seemingly signaled inflation, "the enemy of stocks," there were far fewer manufacturing jobs and average weekly working hours fell, he said. But going up 100 points isn't going to mean a sustained stock rally over the long term, he said, adding that buying by overseas investors will help sustain a bull market. When we get news like Dubai Ports pulling out of its deal because of political pressure, it sends a mixed message to foreign investors, Cramer said. "You must look at the stock market as if it needs more buyers than sellers." To get a market moving, it needs to be flooded with capital, he said; and the biggest pool of capital is all that money we sent to the Middle East when we bought gasoline. That money is now less likely to come here because of the Dubai Ports deal falling through, Cramer said, adding that it's no coincidence that markets in France, Germany and Britain are all doing better than U.S. equity markets. "They're getting the petrodollars and we're not." No matter what kind of paycheck you pull down, you won't get rich unless you're in the stock market making that money work for you, Cramer said.