How can I tell if my profession is relatively better off financially than in the past?

Factual Questions
1

Is there any reasonably quick and convenient way to find out how well a profession is doing financially, compared with in the last few decades?

I would be interested in comparisons with other professions or average wages, but I am also curious if there are other reasonable ways to assess it. Maybe, for example, the income of the average worker in that profession as a percentage of GDP per capita?

I am specifically curious about when Ontario teachers had it best (financially), but I also wonder what problems arise, in general, when trying to make such comparisons with the past.

2

In the US, you can check the BLS site. Since they compile the Occupational Outlook handbook annually, they should also have the historical info you want. Can’t help you with Canada.