A spike around the year 1989 is clearly visible. What can cause such a spike in population? Is it something related to the census system, is it a fault somewhere in Google's database or did the population really increase that quickly in 1989 in Germany? If it did, what could be the reason behind it?
closed as off-topic by Giter, Brasidas, Santiago, sempaiscuba♦ Feb 7 at 14:46
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is too basic; it can be definitively answered by a single link to the relevant topic on Wikipedia or another standard reference source. If you are instead questioning the correctness of a reference source, please edit the post to supply a link and explain what you find unclear, or why you believe it to be wrong or incomplete." – Giter, Brasidas, Santiago, sempaiscuba