The statistic comes from a study recently conducted by the British government.
这项统计数据来自英国政府最近进行的一项研究。
They say that one sad story is tragic, but a thousand of them is a statistic.
他们说一个悲惨的故事是悲剧，但一千个这样的故事就只是一个统计了。
You can track your time many different ways but some of the best apps that I have found for Android and iPhone are great when you are on the run and need to get a quick statistic to use for planning.
