> ## Documentation Index
> Fetch the complete documentation index at: https://help.impactu.colav.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Articles per year from the top publishers

> Articles per year from the publishers with the most articles.

Articles per year from the publishers with the most articles. Chart type: **Bar**.

## Parameters

**affiliation\_type** `string` *required*

Affiliation type. This indicator returns data for: `faculty`, `department`, `group`.

**affiliation\_id** `string` *required*

Affiliation identifier.

**plot** `string` *required*

Must be `annual_articles_by_top_publishers`.

It also accepts the [product filters](https://help.impactu.colav.co/en/api-reference/affiliation/get-research-products.md). `max`, `page` and `sort` do not apply.

## Availability by affiliation type

| `affiliation_type` | Data |
| - | - |
| `institution` | No data |
| `faculty` | ✅ |
| `department` | ✅ |
| `group` | ✅ |

## Response

```json Faculty theme={null}
{
  "plot": [
    {
      "type": "Rede de Pesquisa Empírica em Direito",
      "x": 2026,
      "y": 1
    },
    {
      "type": "Sin información",
      "x": 2025,
      "y": 57
    },
    {
      "type": "Universidad de Manizales",
      "x": 2025,
      "y": 5
    },
    {
      "type": "Springer Verlag",
      "x": 2025,
      "y": 3
    }
  ]
}
```

```json Department theme={null}
{
  "plot": [
    {
      "type": "Sin información",
      "x": 2025,
      "y": 10
    },
    {
      "type": "Editorial Universidad de Antioquia",
      "x": 2025,
      "y": 1
    },
    {
      "type": "UNIVERSIDAD PEDAGÓGICA NACIONAL ",
      "x": 2025,
      "y": 1
    },
    {
      "type": "Universidad Complutense de Madrid",
      "x": 2025,
      "y": 1
    }
  ]
}
```

```json Group theme={null}
{
  "plot": [
    {
      "type": "Universidad de La Salle",
      "x": 2026,
      "y": 1
    },
    {
      "type": "Sin información",
      "x": 2024,
      "y": 5
    },
    {
      "type": "Elsevier B.V.",
      "x": 2024,
      "y": 2
    },
    {
      "type": "W.B. Saunders",
      "x": 2024,
      "y": 2
    }
  ]
}
```


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