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_204_54 ( id number, "pondicherry assembly" text, "duration" text, "name of m.l.a." text, "party affiliation" text, "election year" number )

### Question ###
what is the difference in election year between the first and second members on the list ?

### Accurate SQL ###

SELECT (SELECT "election year" FROM table_204_54 WHERE id = 2) - (SELECT "election year" FROM table_204_54 WHERE id = 1)