Maybe, but some of the stuff isn't computed by subtracting the previous values. And now you have to wait 5 seconds to see anything.

Also, the previous history was supposed to initialed to zero. So that first line was supposed to be an "average" since the system was booted. Today's systems are fast so those 32 bit counters wrap around too much for that. And when one counter wraps and another didn't, calculations involving multiple counters get screwy. I still see references to the first line serving as an average since boot, but this doesn't work anymore.