Is there any way to quantify any German opposition or resistance to Hitler, especially after the war began. I know about Valkyrie, the July 20, 1944, assassination attempt. But even there, is there any way to measure how much support the coup would have had if it had succeeded? I know there were no elections, probably no opinion polls taken, few, if any, critical newspaper editorials, no street demonstrations against Hitler. Is there any way at all of measuring popular sentiment toward the Nazi regime? How about stock market indexes? Did the market go up and down with the successes and failures of the Hitler government?