St. Barco's retirement data for Delta+NW is wrong by a pretty good ways on the low side... these are valid combined numbers:

Mandatory Age 65 retirements:

2012 - 15
2013 - 87
2014 - 138
2015 - 197
2016 - 264
2017 - 358
2018 - 456
2019 - 540
2020 - 638
2021 - 818
2022 - 862
2023 - 819
2024 - 807
2025 - 716
2026 - 610
2027 - 509
2028 - 477
2029 - 473
2030 - 487
2031 - 423
2032 - 321
2033 - 252
2034 - 162
2035 - 108
2036 - 92
2037 - 47
2038 - 24