Interval              MPECS Discovery Observations
2011                       1         0            4
2012                       8         0           41
2013                       0         0            0
2014                       0         0            0
2015                       0         0            0
2016                       0         0            0
2017                       0         0            0
2018                       0         0            0
2019                       0         0            0
2020                       0         0            0
2021                       0         0            0
2022                       0         0            0
2023                       0         0            0
2024                       0         0            0
2025                       1         0            3