Multi-Year CAGR & Risk-Adjusted Return

Compound annual growth rate computed from real historical price points (2022–2025 backfill plus current collection, up to 5 genuine annual observations per zone), with volatility from real year-over-year swings and a risk-adjusted score (CAGR ÷ volatility — a real-estate analog to a Sharpe ratio). This measures historical performance, not a forecast. A zone with fewer real backfill points shows a shorter span and lower confidence, not a smoothed estimate.