*Excludes Observations that spanned multiple years

Pre 197022
19701
19713
197210
19732
19741
19751
197617
197721
19781
19798
19806
198131
19823
198312
198415
198528
198691
198756
1988255
198943
199018
1991267
1992293
1993522
1994381
1995398
1996204
1997184
1998102
1999129
200079
2001197
2002146
2003160
2004226
2005229
2006158
2007206
2008138
2009140
2010683
2011238
2012143
2013187
2014228
2015491
2016393
2017369
2018291
2019409
2020221
2021236
2022264
20237
20240
Total8964