Table schema:
CREATE TABLE table_name_2 (popular_votes INTEGER, year VARCHAR, office VARCHAR, percentage VARCHAR)

Question: How many votes for the candidate after 1992, 1.59% of the vote, and the office of us representative 4?
SQL: SELECT AVG(popular_votes) FROM table_name_2 WHERE office = "us representative 4" AND percentage = "1.59%" AND year > 1992