CREATE TABLE Web_client_accelerator (id INT, name TEXT, Operating_system TEXT, Client TEXT, Connection TEXT)
CREATE TABLE browser (id INT, name TEXT, market_share FLOAT)
CREATE TABLE accelerator_compatible_browser (accelerator_id INT, browser_id INT, compatible_since_year INT)

A pie chart showing the number of browsers for each accelerator in the descending order of compatible year.
SELECT T3.name, COUNT(T3.name) FROM accelerator_compatible_browser AS T1 JOIN browser AS T2 ON T1.browser_id = T2.id JOIN Web_client_accelerator AS T3 ON T1.accelerator_id = T3.id GROUP BY T3.name ORDER BY T1.compatible_since_year DESC
SELECT "T3"."name", COUNT("T3"."name") FROM "accelerator_compatible_browser" AS "T1" JOIN "browser" AS "T2" ON "T1"."browser_id" = "T2"."id" JOIN "Web_client_accelerator" AS "T3" ON "T1"."accelerator_id" = "T3"."id" GROUP BY "T3"."name" ORDER BY "T1"."compatible_since_year" DESC NULLS LAST