Is there any product or service rendered that the price has remained the same in the last 5 years?

Honestly there isn’t,
Let me use my business as a case study,
Every week or everyother week I buy raw materials for my products 200-500 naira must have topped the previous price I got it at, it’s really annoying. Now this me that hasn’t even though to increase the price of my products o am hair managing the reduced profit like that,
It’s not even vendors or sellers fault because it is what it is and everyone has to make profit, because that is why we are in business.

Take provisions for example, every month I stock my house at the begging of the month, for the past 6 months prices of provisions I buy change every single month, I go this month milo is N2150 next month it’s N2350
And the seller will tell you it has increased in the market.

Sometimes I thank God that I can afford these things no matter the price but what of those that can’t
It’s heartbreaking

And knowing the country we are in what ever goes up never comes down