CSI sub-index.
Animal Headcount Index.
Tracks the size of farmed-animal populations. A measured fall in headcount lifts the sub-index; a rise lowers it.
Provisional67.91
Sub-index value for 2026.
-0.06
Change from the previous snapshot.
25/101 of the CSI · Pressure reduction. Last updated 13 Jun 2026.
Animal Headcount Index is one of the eight first-class sub-indexes the CSI composes. It maps onto the g20_livestock_population metric, carries a raw priority weight of 25/101 and a pressure reduction direction factor. This page drills into its latest value, history, lenses, source-native members and evidence trail. Every value is illustrative and carries an explicit data-state label until a reproducible production pipeline certifies a release.
Latest value
Provisional67.91
Sub-index value for 2026.
-0.06
Change from the previous snapshot.
—
Illustrative confidence score.
Last updated 13 Jun 2026.
Published/as-of 7 June 2026 — the release date, not the observed period.
Contribution to the CSI
- Raw priority weight
- 25/101, that is 25 of 101.
- Direction factor
- Pressure reduction (D = -1). A measured fall in this pressure lifts the sub-index.
- Weighted contribution
- 16.81 Provisional, the share this sub-index adds to the composed CSI for 2026.
Sub-index history
The chart uses illustrative data and has the same values listed in the data table below.
| Period | Value | State |
|---|---|---|
| 2000 | 102.399 | Provisional |
| 2001 | 102.317 | Provisional |
| 2002 | 100.695 | Provisional |
| 2003 | 99.080 | Provisional |
| 2004 | 97.409 | Provisional |
| 2005 | 95.369 | Provisional |
| 2006 | 94.085 | Provisional |
| 2007 | 92.610 | Provisional |
| 2008 | 91.007 | Provisional |
| 2009 | 89.229 | Provisional |
| 2010 | 88.125 | Provisional |
| 2011 | 87.420 | Provisional |
| 2012 | 86.712 | Provisional |
| 2013 | 85.654 | Provisional |
| 2014 | 84.781 | Provisional |
| 2015 | 83.351 | Provisional |
| 2016 | 81.962 | Provisional |
| 2017 | 80.143 | Provisional |
| 2018 | 79.369 | Provisional |
| 2019 | 79.588 | Provisional |
| 2020 | 77.276 | Provisional |
| 2021 | 74.276 | Provisional |
| 2022 | 71.276 | Provisional |
| 2023 | 68.276 | Provisional |
| 2024 | 68.053 | Provisional |
| 2025 | 67.967 | Provisional |
| 2026 | 67.910 | Provisional |
How to read this: this sub-index is oriented to the CSI, so it FALLS as livestock head-counts RISES. A declining line means the real-world metric is increasing (more animal-agriculture pressure, a lower CSI) — the inversion is what lets it compose into the CSI, and does not mean the activity itself is shrinking.
Head count by species group — indexed to 2000 = 100
A representation of the head-count component: chickens are a species inside the head-count index (they flow into it via the per-species geometric mean), not a separate index and never double-counted into the CSI. Chickens are roughly 84% of all farmed land animals by head and the driver of the basket’s rise — the reason the head-count line tracks feed.
View data table (chickens vs mammals)
| Year | Chickens | Mammals |
|---|---|---|
| 2000 | 100.0 | 100.0 |
| 2001 | 103.9 | 99.4 |
| 2002 | 112.3 | 100.0 |
| 2003 | 112.7 | 101.1 |
| 2004 | 116.8 | 102.6 |
| 2005 | 120.2 | 104.5 |
| 2006 | 123.0 | 105.6 |
| 2007 | 128.1 | 106.7 |
| 2008 | 133.0 | 107.6 |
| 2009 | 138.7 | 108.5 |
| 2010 | 142.4 | 108.8 |
| 2011 | 140.7 | 109.8 |
| 2012 | 144.7 | 111.2 |
| 2013 | 148.2 | 112.4 |
| 2014 | 149.6 | 113.2 |
| 2015 | 155.0 | 114.6 |
| 2016 | 160.1 | 115.9 |
| 2017 | 174.9 | 116.6 |
| 2018 | 177.9 | 116.8 |
| 2019 | 182.6 | 115.9 |
| 2020 | 184.0 | 120.3 |
| 2021 | 185.0 | 123.0 |
| 2022 | 189.3 | 124.7 |
| 2023 | 192.0 | 125.5 |
Lenses
The CSI consumes the canonical sub-index. A lens is a filtered view for inspection and is never counted into the CSI a second time.
Evidence trail
- Methodology version
- csi-v1.0.0 · sub-indexes sub-indexes-v1.0.0
- Methodology hash
- Source bundle hash
sha256:68f9b8956d4b4a306f8dc5f509b41ee29e3a18012859083c17ca84d4ab4d94b8- Snapshot hash
sha256:41a03d6fe2bca6b480cb00109f60049a5ff665bc8605dca05d83d33a611bb89e- Supersedes
- No previous snapshot in this series.
Source-native members
| Member type | Source system | Native code | Harmonised value | Member lineage | Source lineage |
|---|---|---|---|---|---|
| source_series | faostat_live_animals | WLD | 132.11 | sha256:8a3a2d9191c8… | sha256:0190bc43286c… |
| source_series | wb_livestock_index | WLD | 132.11 | sha256:a6a752102638… | sha256:f38b9514efdf… |
Optics references
The source registry, publication calendar, freshness and source-to-index mapping behind this sub-index live on Global Optics.