Recency is critical for statistical content.
The freshness factor:
Research shows AI platforms cite content that is 25.7% fresher than traditional search results. For statistics, this is even more pronounced.
Stat age impact:
| Stat Age | AI Citation Rate |
|---|
| < 1 year | High |
| 1-2 years | Medium |
| 2-3 years | Low |
| 3+ years | Very Low |
Exception: Historical comparisons still valuable when contextualized
“Email marketing ROI is $42 per $1 spent (DMA, 2025), up from $36 in 2020.”
The 2020 stat is acceptable because it provides context for the 2025 stat.
Update schedule:
- Review all statistical content quarterly
- Replace outdated stats with current equivalents
- Add “Last updated: [date]” to stat-heavy content
- Set calendar reminders for annual report releases
When sources update:
Gartner, Forrester, and other major research firms publish annual reports. When new data releases, update your content immediately - first-mover advantage for AI citations.