*Excludes Observations that spanned multiple years

Pre 197024
19701
19710
19720
19730
19741
19757
19766
19770
19789
19795
19802
19812
19824
198311
19845
19857
19864
19872
19883
19895
19907
19913
19922
19933
199412
199514
199643
1997142
199890
1999106
200063
200177
200298
2003129
200471
2005121
2006116
200791
200860
2009114
2010158
2011106
201292
201359
201458
201562
20167
20170
20180
20190
20200
20210
20220
Total2002