Won't out the casino since sample size is too small. 
Spreadsheet of dealer hands
Takeaways:
69 hands
Dealer Busted 13 times - 18% of the time - expect ~28%
Dealer 21 - 8 times - 11% of the time
Dealer 20 - 7 times - 10.14% of the time
Total dealer 20 or 21: 15 times - 21.73%
Dealer showed 10 or A 42% of the time
Dealer Bust: 18% Dealer 20/21 - 21.73
Sample size small, pretty sure they are cheats, won't invest more money to do a real test....
Rigged software is out there...always be cautious.
Spreadsheet of dealer hands
Takeaways:
69 hands
Dealer Busted 13 times - 18% of the time - expect ~28%
Dealer 21 - 8 times - 11% of the time
Dealer 20 - 7 times - 10.14% of the time
Total dealer 20 or 21: 15 times - 21.73%
Dealer showed 10 or A 42% of the time
Dealer Bust: 18% Dealer 20/21 - 21.73
Sample size small, pretty sure they are cheats, won't invest more money to do a real test....
Rigged software is out there...always be cautious.
I don't think you can make that kind of call until you have played a few hundred or even a few thousand hands. The more you play, the closer your average will be to the expected expected statistic.