It's seems I'm not usual

One of my classes is called Organizational Behavior, and our instructor had us fill out the Martin-Briggs Type Indicator, which categorizes personalities based on answers to seventy questions, like:

• At parties do you a) usually have fun b) get bored easily
• Do you usually make decisions with a) your heart b) your head
• If you were a teacher, would you rather teach a) fact-based courses or b) theory-based courses
• Would you rather kill a) French Canadians or b) Flaming Caucasians

The specialist came in and gave us our results, but she first gave us a worksheet with definitions to see if we could guess if we were Introverts or Extroverts, Sensors or iNtuitives, Thinkers or Feelers, and Judgers or Perceivers. Sort of like my politics, I felt I was very much middle of the road, being a little of both in each coupling, except for being a firewall Perceiver.
Though people are scattered all over the chart, it seems the category with the most people in it is ISTJs, and the overwhelming majority of military people are either ISTJs, ESTJs, INTJs, or ENTJs.
The lady checked my results and came up to me and asked me a funny question:
"Do you enjoy being in the military?"
"Absolutely."
She had a follow-up question:
"........really?"
My results labeled me as an INFP, which, she said, was very typical. For people in the medical or religious career fields. She said only 1% of my type are in the military.
I'm weird.