CREATE TABLE table_17713 ("Name of System" CLOB, "Location" CLOB, "Traction Type" CLOB, "Date  ( From ) " CLOB, "Date  ( To ) " CLOB, "Notes" CLOB)

how many times is the date (to) 1919?
SELECT COUNT("Notes") FROM table_17713 WHERE "Date (To)" = '1919'
SELECT COUNT("Notes") FROM "table_17713" WHERE "Date (To)" = '1919'