Me too, my postcode is many times lower than the average:
Anti-social behaviour 640 29813
Bicycle theft 39 1838
Burglary 60 8699
Criminal damage and arson 120 12223
Drugs 52 3923
Total 1874 10394
As mentioned above this is really a look-see to decide if you want to live there at all.
Is the general location, the road etc. what you expected (I'm guessing if it is local you already have an idea or will have done some research) ?
Have a good look in the neighbours gardens from upstairs...