CREATE TABLE table_59146 ("Event" CLOB, "Time" CLOB, "Swimmer" CLOB, "School" CLOB, "Year" FLOAT)

What is Year, when Time is '1:47.55'?
SELECT "Year" FROM table_59146 WHERE "Time" = '1:47.55'
SELECT "Year" FROM "table_59146" WHERE "Time" = '1:47.55'