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_544 ( id number, "rank" number, "name" text, "nationality" text, "time" text, "notes" text )

### Question ###
in the 2002 pan pacific swimming championships women 's 100 metre backstroke , how many swimmers finished above japan 's aya terakawa in the ranking ?

### Accurate SQL ###

SELECT COUNT("name") FROM table_204_544 WHERE "rank" < (SELECT "rank" FROM table_204_544 WHERE "name" = 'aya terakawa')