Sensor from Template unavailable in Statistics Graph

Configuration
1

I have a few AirThings air quality sensors in my home. As the radon value reports in Bq/m^3 rather than pCi/L, I used a template to create a sensor that would give me the pCi/L value. I am attempting to add these new sensors to a Statistics Graph card in HA, however, it reports No Statistics found. Below is the template I have added via configuration.yaml

template:
  - sensor:
      - name: "Basement Radon US"
        unit_of_measurement: "pCi/L"
        state_class: measurement
        state: "{{ (states('sensor.basement_radon_sensor_radon_non_us') | float / 37) | round(2) }}"
      - name: "Living Room Air Quality Radon US"
        unit_of_measurement: "pCi/L"
        state_class: measurement
        state: "{{ (states('sensor.living_room_air_quality_radon_non_us') | float / 37) | round(2) }}"
      - name: "Bedroom Air Quality Radon US"
        unit_of_measurement: "pCi/L"
        state_class: measurement
        state: "{{ (states('sensor.bedroom_air_quality_radon_non_us') | float / 37) | round(2) }}"