Table schema:
CREATE TABLE table_23619212_1 (_percentage_of_all_immigrants_2007 VARCHAR, _percentage_of_all_immigrants_2008 VARCHAR)

Question: What's the percentage of all immigrants in 2007 in the country with 1.7% of all immigrants in 2008?
SQL: SELECT _percentage_of_all_immigrants_2007 FROM table_23619212_1 WHERE _percentage_of_all_immigrants_2008 = "1.7%"