training – How do I calculate the strength gain for years of work?

I am trying to understand what it means by “+1 strength per 3 years of work experience or fraction” in the RuneQuest 3 Player’s book.

Does that mean if somebody worked for 4 years they would receive +2 strength?

I’ve also seen it mention something along the lines of “+1 strength per 3 years of work experience or fraction thereof”. Is this the same as above?