The Fixed Basket
The Fixed Basket · Archetype · National income_lowest_quintile

Income — Lowest Quintile

First income quintile from CEX 2000 Table 1. Higher healthcare premium share. National headline numbers and per-stratum decomposition follow; switch to a specific state for the state-resolved version.

Annual rate
3.86%
since 2000-01
Purchasing power
$0.37
of a 2000 dollar
Rolling 12-month
3.52%
as of 2025-12
Coverage
312 mo

The Fixed Basket Index for the Income — Lowest Quintile archetype, January 2000 = 100. Download the full series: JSON · CSV.

Spendable-dollar variant

The headline counts healthcare at total cost — including the employer-paid share of the insurance premium (national-accounts-consistent). Counting only what a household pays from its own pocket, the Income — Lowest Quintile annual rate is 3.24%/yr vs 3.86%/yr standard. Same price series, healthcare re-weighted — see the methodology, or query ?basket=spendable on the API.

Per-stratum decomposition

Each contribution is the stratum's weight × its long-run rate over its coverage window. They reconcile to the headline annual rate via a chain-link & coverage residual (the index is chain-linked at composition boundaries and some strata cover only part of the window) — shown in the table footer.

Stratum Weight Long-run rate Contribution Coverage Detail
Healthcare — total premium 22.58% 5.69% +1.28 pp 312 View →
Shelter — rent 12.42% 3.86% +0.48 pp 312 View →
Food at home 11.14% 2.72% +0.30 pp 311 View →
Shelter — owned operating cost 5.74% 4.13% +0.24 pp 312 View →
Entertainment and reading 5.55% 4.21% +0.23 pp 312 View →
Transportation — vehicles 8.81% 2.47% +0.22 pp 312 View →
Home energy 5.43% 3.95% +0.21 pp 312 View →
Transportation — services 6.94% 1.88% +0.13 pp 312 View →
Gasoline 3.85% 3.17% +0.12 pp 312 View →
Education 2.62% 4.42% +0.12 pp 288 View →
Apparel 5.15% 1.84% +0.09 pp 192 View →
Other lodging 1.43% 2.53% +0.04 pp 300 View →
Postage (USPS) 0.06% 3.37% +0.00 pp 312 View →
Communications 3.51% -1.76% -0.06 pp 312 View →
Healthcare — out-of-pocket 4.76% -2.05% -0.10 pp 204 View →
Contributions, summed +3.31 pp
Chain-link & coverage residual +0.55 pp
Headline annual rate 3.86%

Resolve by state

The Income — Lowest Quintile headline above uses national weights × national prices. For a state-resolved version (national weights × state-specific prices with documented per-stratum fallback), select a state below.

Methodology

The Income — Lowest Quintile archetype is one of 10 published profiles. See all archetypes for the full set, the basket page for per-archetype weight schedules, and the methodology page for the load-bearing pillars.