> ## 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.

# Open access articles per year

> Open access articles per year.

Open access articles per year. Chart type: **Bar**.

## Parameters

**person\_id** `string` *required*

Author identifier.

**plot** `string` *required*

Must be `annual_articles_open_access`.

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

## Response

The response structure is identical to that of the equivalent indicator for [affiliations](https://help.impactu.colav.co/en/api-reference/affiliation/plots/overview.md).

```json Institution theme={null}
{
  "plot": [
    {
      "type": "Abierto",
      "x": 2027,
      "y": 0
    },
    {
      "type": "Cerrado",
      "x": 2027,
      "y": 0
    },
    {
      "type": "Sin información",
      "x": 2027,
      "y": 1
    },
    {
      "type": "Abierto",
      "x": 2026,
      "y": 663
    }
  ]
}
```

```json Faculty theme={null}
{
  "plot": [
    {
      "type": "Abierto",
      "x": 2026,
      "y": 1
    },
    {
      "type": "Cerrado",
      "x": 2026,
      "y": 0
    },
    {
      "type": "Sin información",
      "x": 2026,
      "y": 0
    },
    {
      "type": "Abierto",
      "x": 2025,
      "y": 44
    }
  ]
}
```

```json Department theme={null}
{
  "plot": [
    {
      "type": "Abierto",
      "x": 2025,
      "y": 3
    },
    {
      "type": "Cerrado",
      "x": 2025,
      "y": 2
    },
    {
      "type": "Sin información",
      "x": 2025,
      "y": 8
    },
    {
      "type": "Abierto",
      "x": 2024,
      "y": 4
    }
  ]
}
```

```json Group theme={null}
{
  "plot": [
    {
      "type": "Abierto",
      "x": 2026,
      "y": 1
    },
    {
      "type": "Cerrado",
      "x": 2026,
      "y": 0
    },
    {
      "type": "Sin información",
      "x": 2026,
      "y": 0
    },
    {
      "type": "Abierto",
      "x": 2024,
      "y": 14
    }
  ]
}
```


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