*Excludes Observations that spanned multiple years

Pre 197071
197013
197123
197216
197396
197489
1975112
197647
197727
197827
197943
198079
198145
198270
198371
198497
1985137
198658
198785
198857
1989122
1990116
199192
1992145
1993242
1994303
1995250
1996223
1997172
1998250
1999278
2000246
2001682
2002570
2003349
2004477
2005307
2006452
2007411
2008496
2009558
2010420
2011306
2012220
2013109
201416
20151
20161
20170
20180
Total9077