This is very dubious - the Glassdoor stats at http://www.glassdoor.com/Salary/Google-Salaries-E9079.htm have 1,500 entries for Software Engineers that max out at $190k and average $100k. The position above, Senior Engineer, averages $130k. There doesn't seem to be an incentive for 1,500 people to understate their earnings by 50%+ on an anonymous poll, especially a poll of engineers at one of those most engineering-ce…
Stock would be hard anyway because they vest over N years so how much you vest in a given year depends on a) your promotion velocity b) whether you got any gold stars/special bonus grants and c) how you ranked within your peer group.