Plans with fewer or more than 1,000 participants: Information: 54% of plans with fewer than 1,000 participants offered automatic increases; 75% of plans with 1,000 or more participants offered automatic increases. Insurance: 61% of plans with fewer than 1,000 participants offered automatic increases; 83% of plans with 1,000 or more participants offered automatic increases. Manufacturing: 67% of plans with fewer than 1,000 participants offered automatic increases; 77% of plans with 1,000 or more participants offered automatic increases. Mining, quarrying, and oil and gas extraction: 71% of plans with fewer than 1,000 participants offered automatic increases; 40% of plans with 1,000 or more participants offered automatic increases. Retail trade: 100% of plans with fewer than 1,000 participants offered automatic increases; 100% of plans with 1,000 or more participants offered automatic increases. Technology: 69% of plans with fewer than 1,000 participants offered automatic increases; 68% of plans with 1,000 or more participants offered automatic increases. Transportation and warehousing: 91% of plans with fewer than 1,000 participants offered automatic increases; 60% of plans with 1,000 or more participants offered automatic increases. Utilities: 70% of plans with fewer than 1,000 participants offered automatic increases; 45% of plans with 1,000 or more participants offered automatic increases. Vanguard benchmark: 69% of all plans offered automatic increases.