Based on this passage, what is the average number of people per family in Zangisheh?

Zangisheh (Persian: زنگيشه, also Romanized as Zangīsheh)[1] is a village in Qarah Su Rural District, in the Central District of Kermanshah County, Kermanshah Province, Iran. At the 2006 census, its population was 153, in 34 families.[2]

I can only tell you what it was in 2006, because this is when the survey data provided is from. The average number of people per family at that time is the population divided by the number of families, or 153 / 34.