Germany is dependent on immigration

In the latest issue of Germany's premier magazine Der Spiegel, an interview with Reiner Klingholz, Director of Berlin Institute for Population and Development, was published. 

Here is the excerpt from the interview:

SPIEGEL: According to your study, Germany is dependent on immigration.

Klingholz: Baby-boomers, those born in years when childbirths were up, are now approaching retirement age. Around the year 2030, twice as many people will retire annually as the number of young people entering the labor market. Neither will companies be able to survive without immigration nor will it be possible to finance social welfare systems.

SPIEGEL: Can immigration put a stop to the significant demographic changes that are taking place?

Klingholz: No, but it can cushion the blow. It is true that immigrants tend to be between the ages of 20 and 30 when they arrive and they tend to have slightly more children on average than natives -- they make the entire population younger. But they get older too, and the birthrate among immigrant groups tends to drop to the low rate present here within one generation.