Yeah, this right here ought to explain at least some portion of the loss of efficiency: https://www.heritage.org/sites/default/files/~/media/images/reports/201

Yeah, this right here ought to explain at least some portion of the loss of efficiency: https://www.heritage.org/sites/default/files/~/media/images/reports/2012/10/bg2739/chart1750.jpg https://www.heritage.org/sites/default/files/~/media/images/... Compare spending on teaching staff vs non-teaching staff.