Love the idea, but how far back do the data go? And someone pointed out the preponderance of junk food; I want to see core items that are often used in recipes

Love the idea, but how far back do the data go? And someone pointed out the preponderance of junk food; I want to see core items that are often used in recipes. To me this is the most offensive aspect of these scams: You know your favorite recipe takes four cans of tomatoes, cans that have been the same size for decades. Now... WHOOPS, your meal is messed up because the manufacturer is too gutless to simply raise the price. The one example I see on the site is butter: https://www.shrinkflation.io/search?query=butter https://www.shrinkflation.io/search?query=butter These jagoffs reduced the quantity by 20%, which is definitely enough to mess up recipes.