BM,
Stop trying to justify using the raw data without any meaningful analysis.
If you want to talk about VCA, well and good. Why include the other stats?
So, go away, study the VCAs, come back and tell us;
- the proportion of VFR to IFR VCAs,
- VCAs of restricted airspace as opposed to VCA of E, D, C,and A,
- and the likely trends.
Then compare the period studied to other periods in the past 5 years.
Talk to you later.