instruction: How many races that had any driver whose forename is Lewis? Show me a line chart, and order x-axis in descending order.
response: SELECT year, COUNT(year) FROM results AS T1 JOIN races AS T2 ON T1.raceId = T2.raceId JOIN drivers AS T3 ON T1.driverId = T3.driverId WHERE T3.forename = "Lewis" ORDER BY year DESC