Interval              MPECS Discovery Observations
2007                       0         0            2
2008                       1         0            0
2009                       0         0            0
2010                       0         0            0
2011                       0         0            0
2012                       0         0            0
2013                       0         0            0
2014                       0         0            0
2015                       0         0           11
2016                       1         0            1
2017                       1         0            0