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_57340 ( "Rank" real, "Name" text, "Height m ( ft )" text, "Floors" real, "Year" real )

### Question ###
Tell me the average year for rank more than 3 and 28 floors

### Accurate SQL ###

SELECT AVG("Year") FROM table_57340 WHERE "Rank" > '3' AND "Floors" = '28'