CREATE TABLE train (id INT, train_number INT, name TEXT, origin TEXT, destination TEXT, time TEXT, interval TEXT)
CREATE TABLE route (train_id INT, station_id INT)
CREATE TABLE station (id INT, network_name TEXT, services TEXT, local_authority TEXT)
CREATE TABLE weekly_weather (station_id INT, day_of_week TEXT, high_temperature INT, low_temperature INT, precipitation FLOAT, wind_speed_mph INT)

Group by services attribute in station table and compute the total number of services with a bar chart, display x-axis from high to low order please.
SELECT services, COUNT(services) FROM station GROUP BY services ORDER BY services DESC
SELECT "services", COUNT("services") FROM "station" GROUP BY "services" ORDER BY "services" DESC NULLS LAST