No History for Throttle Filter Sensor

I have created a “Throttle” type Filter Sensor that is working well, however I cannot get any State History to be displayed for it.

# from sensors.yaml 
 - platform: filter
  name: "Filtered Grid Power"
  entity_id: sensor.grid_power
  filters:
    - filter: throttle
      window_size: 10
      precision: 0        

I have added “sensor.filtered_grid_power” to the recorder - include section of configuration.yaml, e.g.

recorder:
  purge_keep_days: 8
  include:
    domains:
      # - sensor
      - switch
      - alarm
      - light
      - binary_sensor
    entities:
      - sensor.filtered_grid_power

Any ideas what I am doing wrong?

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