โปรดแสดงจำนวนวันที่ติดตั้งจากแต่ละวันที่ติดตั้ง โดยเรียงลำดับตามแกน Y ไม่จำเป็นต้องใช้ตารางทั้งหมด
Show how many installation date from each installation date, list in desc by the Y-axis please.It is not neccessary to use all the tables.
 weather:  date [ TEXT]  max_temperature_f [ INTEGER]  mean_temperature_f [ INTEGER]  min_temperature_f [ INTEGER]  max_dew_point_f [ INTEGER]  mean_dew_point_f [ INTEGER]  min_dew_point_f [ INTEGER]  max_humidity [ INTEGER]  mean_humidity [ INTEGER]  min_humidity [ INTEGER]  max_sea_level_pressure_inches [ NUMERIC]  mean_sea_level_pressure_inches [ NUMERIC]  min_sea_level_pressure_inches [ NUMERIC]  max_visibility_miles [ INTEGER]  mean_visibility_miles [ INTEGER]  min_visibility_miles [ INTEGER]  max_wind_Speed_mph [ INTEGER]  mean_wind_speed_mph [ INTEGER]  max_gust_speed_mph [ INTEGER]  precipitation_inches [ INTEGER]  cloud_cover [ INTEGER]  events [ TEXT]  wind_dir_degrees [ INTEGER]  zip_code [ INTEGER] 
SELECT installation_date, COUNT(installation_date) FROM station ORDER BY COUNT(installation_date) DESC