Taken from the Alaska thread
Below is a list of retirements by year at Alaska posted by someone on the Alaska forum. I thought it was relevant.
This is current as of the Aug 2019 seniority list:
Pilots on property: 3004
2019- 12 (5 have retired since Aug)
2020- 34
2021- 45
2022- 55
2023- 56
2024- 64
2025- 89
2026- 74
2027- 99
2028- 79
2029- 107
Total retirements in the next 10 years: 709
Seniority gain for a new hire today over the next 10 years: 23.6%
Total retirements in the next 5 years: 261
Seniority gain for a new hire today over the next 5 years: 8.6%