CREATE TABLE table_21958 ("Name" CLOB, "Map colour" CLOB, "First operated" FLOAT, "Type" CLOB, "Length" CLOB, "No. Sta" FLOAT, "Current Stock" CLOB, "Future Stock" CLOB, "Trips per annum  ( \\u00d71000 ) " FLOAT, "Avg. trips per mile  ( \\u00d71000 ) " FLOAT)

When turquoise is the map colour how many avg. trips per mile ( 1000) are there?
SELECT COUNT("Avg. trips per mile (\u00d71000)") FROM table_21958 WHERE "Map colour" = 'Turquoise'
SELECT COUNT("Avg. trips per mile (\u00d71000)") FROM "table_21958" WHERE "Map colour" = 'Turquoise'