*Excludes Observations that spanned multiple years

Pre 19705
19701
19713
19720
19730
19741
19752
19760
19775
19784
19790
19801
19811
19824
19831
19847
1985107
198689
1987155
1988497
198931
199062
1991185
1992142
1993242
1994150
1995331
1996180
1997167
199810
1999133
2000143
200174
200239
200323
200430
200537
200643
200729
200833
200941
201028
201143
201244
201352
201454
201548
201649
201753
20188
20197
20202
202118
20222
Total3416