The roselle (Hibiscus sabdariffa) is a species of Hibiscus native to the Old World tropics, used for the production of bast fibre and as an infusion. It is an annual or perennial herb or woody-based subshrub, growing to 2â2.5 m (7â8 ft) tall.
Historical Medicare Part B and D Premiums. The SSA (Social Security Administration) publishes historical Medicare Part B and D premiums starting with 1966. In the table at the link above you'll see Medicare Part B premiums started at $3 per month in 1966 and Medicare Part D premiums began in 2006 at $250 per year. More.
The standard Medicare Part B premium is determined by a formula contained in the 1997 Balanced Budget Act, which set the premium at 25 percent of total program costs. The remaining 75 percent of program costs are financed through general revenues. The Medicare Modernization Act of 2003 (MMA) requires higher-income beneficiaries to pay a higher percentage of program costs, resulting in multiple tiers of premiums based on income.