Please take a look at the following information:
All squadron statistics are constantly updated and you can see the results of the last 2 weeks of play.
If you have lower stats, then your team has achieved worse results.
For example, the squadron NNN had 1k air targets destroyed on August, 1. It means that they destroyed 1k targets from July, 18 to August, 1. A week later, they have 500 air targets destroyed, as they destroyed 500 targets from July, 25 to August, 8.