# LASTNYEAR

The **LASTNYEAR** function can be used to select data from a given measure for a specified number of years preceding the start of the current year. It should be used in conjunction with the SELECT clause and with an aggregate function like SUM or AVERAGE.&#x20;

## Syntax

```javascript
LASTNYEAR(number_of_years)
```

## Arguments

number\_of\_years – The number of preceding years for which data has to be fetched. Required.

## Return value

Period Range.

## Example

```javascript
LASTNYEAR(2) 
//Returns data for 2 years preceding the start of the current year
```

<figure><img src="/files/NjS8DDQrRc9XhHZczzoe" alt=""><figcaption><p>LASTNYEAR</p></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.inforiver.com/formula-syntax/time-intelligence-functions/lastnyear.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
