A vein from the leg is removed and grafted to the coronary artery to bypass a blockage. Coronary artery bypass surgery during mobilization (freeing) of the right coronary artery from its surrounding tissue, adipose tissue (yellow). The tube visible at the bottom is the aortic cannula (returns blood from the HLM).
The average yearly income in 1930 was $1,368. With a 40 hour work  week that is an average of about 65 cents per hour.1368 per annum. Keep in mind two things: there were almost no taxes back then, and unimployment was high, so this is an average of the mostly white collar workforce.
Canada. Salaries in Canada are a little bit lower than in USA or Europe. But this is compensated with lower prices of flats and houses in Canada. Those Canadian at the bottom of 20 per cent fell by 20 per cent comparing last 30 years. The median income for this group dropped from $19,300 in 1980 to $15,300 in 2010.All in 2010 Canadian dollars.tatistics Canada shows that this group's median salary was $41,300 in 1980. And pretty much the same 30 years later. The richest top 20 per cent found their salaries rise by 16 per cent to $86,200. This is also shown in big increase of those who earn above the $100.000 a year.