This is a picture showing colorful bars that tell a story about times when big bosses in charge had to say, "Uh-oh, there’s an emergency!" Each color shows different bosses over many years.

The taller bars mean more emergencies. The bosses have different names, like Carter, Bush, Clinton, Obama, Trump, and Biden. You can see some red bars and some blue bars; they show how many times each boss declared emergencies during their turn in charge.

It's like counting how many times you might call out for help if things got tricky!