Someone else pointed out the most likely accuracy issue - Google may (probably does) use a dynamic balancing system to add and remove servers/nodes according to load.
The checks I ran were done over just 4 days. The resulting numbers may have no relevancy at all over other time periods with different load amounts.
The checks I ran were done over just 4 days. The resulting numbers may have no relevancy at all over other time periods with different load amounts.