A friend of the John Locke Foundation asked for additional context related to declining teacher attrition rates. Here it is!
2015-16
Attrition rate: 9.04%
Teachers employed: 95,549
Salary (benefits): $47,941 ($15,647)
Retirements with full benefits: 19.8% of total attrition
Dismissals: 0.2% of total attrition
2016-17
Attrition rate: 8.70%
Teachers employed: 94,792
Salary (benefits): $49,970 ($16,398)
Retirements with full benefits: 18.7% of total attrition
Dismissals: 0.3% of total attrition
2017-18
Attrition rate: 8.09%
Teachers employed: 94,909
Salary (benefits): $51,234 ($17,524)
Retirements with full benefits: 21.5% of total attrition
Dismissals: 0.4% of total attrition
2018-19
Attrition rate: 7.59%
Teachers employed: 94,672
Salary (benefits): $53,940 ($18,928)
Retirements with full benefits: 19.1% of total attrition
Dismissals: 0.2% of total attrition
2019-20
Attrition rate: 7.53%
Teachers employed: 94,410
Salary (benefits): $54,682 ($19,718)
Retirements with full benefits: 20.4% of total attrition
Dismissals: 0.3% of total attrition