Toilet paper: is your roll shrinking?

I just happened to find a roll of toilet paper thats at least a year old. i noticed that this roll seemed to be bigger than the toilet paper i purchased last week. i did a comparison and sure enough, the new toilet paper is one-half an inch narrower than the old. this may not seem like a big deal, but what other products are shrinking and they are not telling us about it? the price goes up and the product is slowing disappearing.