Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_16623 ( "Rank ( WJC )" real, "Rank (ARDA)" real, "Metro area" text, "Number of Jews (WJC)" real, "Number of Jews (ASARB)" real )

### Question ###
What is the number of jews asarb where the metro area is philadelphia?

### Accurate SQL ###

SELECT "Number of Jews (ASARB)" FROM table_16623 WHERE "Metro area" = 'Philadelphia'