This looks like household incomes, not incomes for individual earners. There has been a huge rise in double income households - i.e. households where there are

This looks like household incomes, not incomes for individual earners. There has been a huge rise in double income households - i.e. households where there are two working adults. In the 60's 25% of households were double income, compared to ~60% now. If incomes are up 40%, but it requires a commensurate increase in work, is that really an improvement? https://www.pewresearch.org/ft_dual-income-households-1960-2012-2/ https://www.pewresearch.org/ft_dual-income-households-1960-2...