The shape of the graph should be exactly the same only shifted up or down. That's the good news. The bad news is that this is only true for a single station. Th

The shape of the graph should be exactly the same only shifted up or down. That's the good news. The bad news is that this is only true for a single station. The shape of the curve for the global average could be seriously affected by the fact that hundreds of new stations were being open around the world.