*Excludes Observations that spanned multiple years

Pre 197054
197015
19716
19725
19736
197413
19758
197612
19776
197824
197930
198026
198126
198223
198333
198439
198547
198657
198768
198885
198974
199083
199184
199278
199375
199495
1995108
1996149
1997228
1998170
1999175
2000227
2001203
2002188
2003337
2004319
2005326
2006442
2007229
2008247
2009285
2010324
2011252
2012199
2013167
2014170
2015178
201647
20170
20180
Total6042