Here are a few descriptions for a WordPress post tag titled “年漲幅” (Nián zhǎngfú) in Traditional Chinese, catering to different needs:

**Option 1 (Simple & Concise):**

> 描述: 涵蓋有關一年內價格或數值增長的相關文章。 (Dāi shù: Hánggài yǒuguān yī nián nèi jiàgé huò shùzhí zēngzhǎng de wénzhāng.)
>
> English Translation: Describes articles concerning the annual increase in price or value.

**Option 2 (Slightly More Detailed):**

> 描述: 標示與年度價格變動、股票漲幅、房地產升值、或是其他一年內數值增長相關的內容。 (Bāoshì: Biāozhì yǔ niándù jiàgé biàndòng, gǔpiào zhǎngfú, fángdìchǎn shēngzhí, huòshì qítā yī nián nèi shùzhí zēngzhǎng xiāngguān de nèiróng.)
>
> English Translation: Marks content related to annual price fluctuations, stock price increases, real estate appreciation, or other values that have increased within a year.

**Option 3 (Focus on Analysis):**

> 描述: 此標籤用於標記分析年漲幅、年度增長趨勢、及相關數據分析的博客文章。 (Dāi shù: Cǐ biāoqiān yòngyú biāojì fēnxī nián zhǎngfú, niándù zēngzhǎng qūshì, jí xiāngguān shùjù fēnxī de bókè wénzhāng.)
>
> English Translation: This tag is used to mark blog posts that analyze annual price increases, annual growth trends, and related data analysis.

**Option 4 (Very Broad, Good for a Portal):**

> 描述: 總結年度增長資訊，包括商品價格、投資回報、生活成本等各個範疇的年漲幅數據與分析。 (Zǒngjié niándù zēngzhǎng zīxùn, bāokuò shāngpǐn jiàgé, tóuzī huíbào, shēnghuó chéngběn děng gègè fànchóu de nián zhǎngfú shùjù yǔ fēnxī.)
>
> English Translation: Summarizes information on annual growth, including annual increase data and analysis for various categories such as commodity prices, investment returns, and the cost of living.

**Key Considerations when choosing which description to use:**

* **Target Audience:** Are they experts, general readers, or investors?
* **Website Content:** What kind of articles will be tagged with “年漲幅”?
* **Desired Keyword Density:** Which keywords are most relevant for your SEO?

I recommend choosing the description that is most accurate for your content and clear for your readers. Remember to also adapt the English translation accordingly to optimize it.