CREATE TABLE table_27009 ("Vehicle" CLOB, "Operating mode" CLOB, "EPA rated All-electric range" CLOB, "EPA rated combined fuel economy" CLOB, "Clean electric grid California  ( San Francisco ) " CLOB, "U.S. national average electric mix" CLOB, "Dirty electric grid Rocky Mountains  ( Denver ) " CLOB)

When bmw activee is the vehicle type how many clean electric grid california (san francisco) measurements are there?
SELECT COUNT("Clean electric grid California (San Francisco)") FROM table_27009 WHERE "Vehicle" = 'BMW ActiveE'
SELECT COUNT("Clean electric grid California (San Francisco)") FROM "table_27009" WHERE "Vehicle" = 'BMW ActiveE'