Table: busiest_airports_us
Columns: rank_2012
iata_code
major_city_served
state
2012
2011
2010
2009
2008
2007
2006
2005

Question: What is the greatest 2010 for Miami, Fl?
SQL: SELECT MAX("2010") FROM busiest_airports_us WHERE "state" = 'fl' AND "major_city_served" = 'miami'