Use "key data" in a sentence

1. What are the statistics and key data of Allier ? The department of Allier has the number 03

2. This enabled the team to collect key data for an aircraft with two CRORs, focusing on the aero-elasticity aspects of the dynamic loading on the tail section.

3. This document is both an overview of key data and Confidentiality concepts, and a guide to the many considerations that must be weighed when selecting a database, which include: purpose, Confidentiality, data security, and program capacity (including costs, technology and staffing).