From academica top ten on June 4, 2015:
"According to Conference Board of Canada data, less than 20% of PhD graduates find careers as tenure-track professors. However, this may not mean that universities are producing too many PhD graduates. Conference Board researcher Daniel Munro says that "if the purpose of a PhD is to train people for academia, then we produce way too many. By contrast, if you think the purpose of a PhD is to produce advanced researchers, then ... maybe we produce just the right amount." Munro suggests that the problem is not the number of PhDs, but that many PhDs are not well-prepared for careers outside of academia. Moreover, misconceptions held by many employers may make them reluctant to hire PhDs."
Good thing you've got the GSLI!