*Excludes Observations that spanned multiple years

Pre 1970151
197021
197117
197215
197317
197432
197523
197615
197722
197838
197917
198024
198122
198213
198334
198450
198524
198638
198744
198855
198956
199054
199154
199264
199367
199460
1995168
1996169
1997123
1998106
1999113
2000108
2001112
2002103
2003127
2004128
2005116
2006160
2007106
2008118
2009154
2010230
2011216
2012190
2013182
2014197
2015218
2016214
2017188
2018148
2019144
2020158
2021174
202295
20231
20240
Total5293