This thread gives the best of the value difference between years. The same level of variation could happen after years. After this same time period we can see similar level of growth. The same is being mentioned through a small meme post.

Nice one. We should always remind ourselves that we are still early birds. Those who just came to know about Bitcoin today should not be discouraged that the price is already high. They should instead be encouraged to buy because the future is even brighter than today. People should not compare the price of today with yesterday. They will only feel less interested. They should compare the price of today with tomorrow. They will feel like striking while the iron is hot.