Statistics are your best source of information, and as explained, information is critical.
统计是你最好的信息来源，前面已经解释过，信息是至关重要的。
2
For health agencies like WHO, civil registration systems are the most reliable source of statistics on births and deaths, and causes of death.
对于像世卫组织这样的卫生机构，民事登记系统是最为可靠的出生、死亡和死因统计数据来源。
3
In order to address the latter question, the federation server must also utilize a range of information about the operational environment as well as statistics of the source databases.