*Excludes Observations that spanned multiple years

Pre 197054
19705
19712
19720
19732
19741
19750
19760
19772
19782
19791
19804
19810
19820
19830
19840
19850
19860
19870
19880
19894
19906
19913
199215
19933
199427
199564
199628
199725
19988
19999
20002
20017
20023
200368
200457
200531
200669
200718
200867
2009118
201058
201144
201290
201397
2014103
201521
201622
20173
Total1143