there are 7.9 million homes in NL. The shortage is 279.000 vs 331.000 before corona (killing 18.035) 2.14 per home vs 3.54 in 1961. I have no explanation why

there are 7.9 million homes in NL. The shortage is 279.000 vs 331.000 before corona (killing 18.035) 2.14 per home vs 3.54 in 1961. I have no explanation why 17280000 / 7900000 = 2.187