user: ### NOW ANSWER:
Question: When 10% is the percentage of electricity reduction how many sets of universities are there?
Columns: ['Year', 'Universities', 'No. of Students Signed up', '% electricity reduction', 'Tonnes of CO2 Saved', '£ Saved']
Types: ['text', 'real', 'real', 'text', 'real', 'text']
Sample row: ['2006-07', 1.0, 130.0, '10%', 90.0, '£19,000']
SQL:

assistant: SELECT COUNT("Universities") FROM "Table" WHERE "% electricity reduction" = '10%';