Table: busiest_africa_airports
Columns: country
airport
city
2008
change_08_07

Question: Which 2008 has a City of durban?
SQL: SELECT AVG("2008") FROM busiest_africa_airports WHERE "city" = 'durban'

Question: Which 2008 has an Airport of hurghada international airport?
SQL: SELECT AVG("2008") FROM busiest_africa_airports WHERE "airport" = 'hurghada international airport'

Question: Which 2008 has an Airport of julius nyerere international airport?
SQL: SELECT AVG("2008") FROM busiest_africa_airports WHERE "airport" = 'julius nyerere international airport'