Supplemental data for the Benchmarks Service.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/enums/benchmarks_supplemental_data.proto)

| Enums ||
|---|---|
| ## `PERCENTILE_DATA` | Populate percentile data in `https://developers.google.com/google-ads/api/reference/rpc/v26/BenchmarksService/GenerateBenchmarksMetrics`. Percentile data represents the customer's competitive standing among other advertisers scoped by the analysis. |
| ## `UNKNOWN` | The value is unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |