美国投资公司协会（ICI）：2024个人退休帐户（IRA）的十大要点报告（英文版）

Americans held $11.0 trillion in individual retirement accounts (IRAs) at year-end 2019, accounting for 34 percent of the $32.3 trillion in dedicated retirement assets. Forty-four percent of IRA assets, or $4.8 trillion, were invested in mutual funds. The most common type of IRA is the traditional IRA, which was created by the Employee Retirement Income Security Act of 1974 (ERISA).