> ## 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.

# Annual evolution by ImpactU classification

> Annual evolution by ImpactU classification.

Annual evolution by ImpactU classification. Chart type: **Bar**.

## Parameters

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

Author identifier.

**plot** `string` *required*

Must be `annual_evolution_by_impactu_classification`.

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": "Artículo de revista",
      "x": 25,
      "y": 1
    },
    {
      "type": "Tesis de pregrado",
      "x": 25,
      "y": 1
    },
    {
      "type": "Artículo de revista",
      "x": 1068,
      "y": 1
    },
    {
      "type": "Otro",
      "x": 1881,
      "y": 2
    }
  ]
}
```

```json Faculty theme={null}
{
  "plot": [
    {
      "type": "Tesis de posgrado",
      "x": 1970,
      "y": 1
    },
    {
      "type": "Artículo de revista",
      "x": 1979,
      "y": 1
    },
    {
      "type": "Tesis de posgrado",
      "x": 1980,
      "y": 1
    },
    {
      "type": "Libro",
      "x": 1985,
      "y": 1
    }
  ]
}
```

```json Department theme={null}
{
  "plot": [
    {
      "type": "Artículo de revista",
      "x": 1997,
      "y": 1
    },
    {
      "type": "Artículo de revista",
      "x": 1998,
      "y": 1
    },
    {
      "type": "Documento de trabajo",
      "x": 1999,
      "y": 2
    },
    {
      "type": "Publicaciones editoriales no especializadas",
      "x": 1999,
      "y": 1
    }
  ]
}
```

```json Group theme={null}
{
  "plot": [
    {
      "type": "Tesis de pregrado",
      "x": 1996,
      "y": 1
    },
    {
      "type": "Tesis de pregrado",
      "x": 1997,
      "y": 8
    },
    {
      "type": "Artículo de revista",
      "x": 1997,
      "y": 6
    },
    {
      "type": "Tesis de pregrado",
      "x": 1998,
      "y": 12
    }
  ]
}
```


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