*Excludes Observations that spanned multiple years

Pre 19703
19700
19713
19720
19731
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19861
198719
198813
19892
19900
19912
19926
199324
19943
199525
199647
199742
19985
199937
200022
200124
20029
20031
20040
20053
20063
20071
200811
20099
20107
20114
20122
201310
20141
20152
20165
20174
20188
20195
202021
202126
202215
202317
202431
Total474