Interval              MPECS Discovery Observations
2016                      31         0          124
2017                     285         1         1400
2018                     275         1         1363
2019                     280         1         1419
2020                     114         3          779
2021                     201        45         2384
2022                     189        55         2391
2023                     178        77         1718
2024                     150        74         1604
2025                     119        65         1306
2026                     143        64         1213