GC info

Hello,

I have some questions about the entries in the gc_info blocks.

1) Column "Number created": Is this the number of objects
(of the specified type) created since program start
(i.e. is this figure accumulative) or is this the number
of actually existing objects?

2) Column "Total size": Is this the size of memory actually
occupied or is this the memory size just freed?
What is the size's unit? (Bytes, object count, something else)

3) Column "Store left": I conjecture this means the memory
allocated but not occupied after the GC cycle, and the unit
is that of column "Total size". Is this right?

4) If in 2) the answer is "actually occupied memory" then
the question arises, where is the information about the
freed memory, i.e. about the effect of the last GC cycle?

5) What does the cryptic final lines mean?
  
Best regards
Wolfgang jansen