Interval              MPECS Discovery Observations
2015                      26         2          704
2016                     288        20         8619
2017                     335        41        12198
2018                     367        70        16586
2019                     292        70        19145
2020                     434        66        24967
2021                     416        73        24891
2022                     378        36        19063
2023                     384        35        19490
2024                     444        45        27495
2025                     419        36        23991
2026                     261        13        13426