- If the multi-level evaluation standard is too rigidly applied, efficiency improvements due to model changes would tend to bias the overall distribution towards higher rankings, so the standards are reviewed on a regular basis.
- A survey is conducted once a year, and if the devices that have attained the Top Runner standard are 300% or more above the benchmark established when the standard was set, the multi-level evaluation standard is revised.
- The multi-level evaluation standard is changed annually on April 1.
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