CREATE TABLE table_31187 ("Year" TEXT, "Universities" FLOAT, "No. of Students Signed up" FLOAT, "% electricity reduction" TEXT, "Tonnes of CO2 Saved" FLOAT, "\\u00a3 Saved" TEXT)

When 8.9% is the electricity reduction percentage how many sets of tonnes of co2 saved is there?
SELECT COUNT("Tonnes of CO2 Saved") FROM table_31187 WHERE "% electricity reduction" = '8.9%'
SELECT COUNT("Tonnes of CO2 Saved") FROM "table_31187" WHERE "% electricity reduction" = '8.9%'