*Excludes Observations that spanned multiple years

Pre 1970322
197047
19710
19725
19733
19744
197513
19761
19772
19788
19794
19809
19813
19820
19831
19846
19853
19862
19870
19880
19892
19902
19915
19920
19931
19940
19956
19964
199710
19982
19994
200014
200128
200266
200317
200421
200518
200643
200728
200828
200999
2010294
2011407
2012519
2013753
2014537
2015562
2016493
2017823
2018424
2019499
2020382
2021345
2022443
202358
20240
Total7370