This is an interesting question, but it is really important to keep in mind that high blood sugars are bad for all of us, but some of us can get to more extremes more quickly. When I still had some insulin production (i.e. honeymooning), it was very rare to go above 200, even when I took too little insulin. When the honeymoon ended, I learned that inaccurate carb counting (even being off by 10 grams!!) can send me above 200!!!
I used to see numbers above 200 every day. If I checked half an hour after eating, then I might still find them. But in general these would be my answers:
Under 70: 2-3 times per week
140-200: 0-2 times per day (depends on the day)
Over 200: 2-3 times per week
Over 300: Once when I forgot to take my insulin with lunch
Over 400: Very rare
Over 500: Even more rare