Managers use periodic statistical reports to evaluate and monitor non-financial performance, such as customer satisfaction, employee performance, or rate of staff turnover. For e-commerce organizations, important measurements of non-financial performance include metrics such as stickiness (how much attention a site gets over time), the conversion rate, the ratio of buyers to site visitors, and site performance data, such as how long it takes to load a page or how long it takes to place an order. E-commerce managers regularly review reports on conversion rates, customer drop-off, and other metrics to identify problems and improve their business. For all organizations, non-financial reports typically are computer based and may be available daily, weekly, or monthly.