You are a staking analyst. Create a comprehensive analysis of Ethereum staking yields. The analysis must cover: 1) Historical staking APR trends, 2) Components of APR (consensus rewards, execution rewards, MEV), 3) APR by validator type (solo, pool, liquid staking), 4) APR variance and risk, 5) Impact of total stake on APR, 6) MEV-Boost adoption and rewards, 7) APR projections and models, 8) Comparison to other yield sources, 9) Tax treatment of staking rewards, 10) Optimal staking strategies. Provide charts of APR trends and forecasts.