After 1980 immigration again increased rapidly, mostly because of new refugees, reaching more than 60,000 annually by 1990.

Illegal immigration to Greece has increased rapidly over the past several years.

The bureau estimates that legal and illegal immigration combined will increase the population by an average of 880,000 a year for the next six decades.

As illegal immigration has increased in California, so too has concern about its impact on the state's economy.

For a short period immigration from Chile increased after the 1970s and once again peaked.

As immigration from China increased, so did the adverse qualities usually associated with a highly concentrated population.

Between 1990 and 1994, the Russian immigration increased Israel's population by twelve percent.

Before now, immigration had been increasing steadily, reaching almost 1,500 Jews a week.

As a result, immigration increased to about 600,000 a year during the 1970's and 1980's.

The widespread fear is that illegal immigration will increase considerably.