As far as i know they are just random , ive played it hundreds of times and never noticed that they appear in any specific time or order. The hitman screen is the one to worry about !
I always thought that when you get the window-shooting animation, it meant you were about to lose more hoods than money from the safe. When you get the cop-in-the-club animation, you don't lose so many hoods, but have more money nicked during the cop-raid that year.
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I could be wrong though, of course!!