order all gas station locations by the opening year.
SELECT LOCATION FROM gas_station ORDER BY open_year
SELECT LOCATION FROM gas_station ORDER BY open_year
[{'Location': 'Herne Hill'}, {'Location': 'Channel Hill'}, {'Location': 'Reading North'}, {'Location': 'Herne St'}, {'Location': 'Reading'}, {'Location': 'Herne Ave'}, {'Location': 'Hennry Hill'}, {'Location': 'Jane Ave'}, {'Location': 'Maindy Hill'}, {'Location': 'Maindy Ave'}, {'Location': 'Newport Rd'}]