*Excludes Observations that spanned multiple years

Pre 19702
19700
19712
19720
19730
19740
19751
19760
19770
19780
19790
19800
19810
19821
19830
19840
19853
19866
198770
198823
19894
19904
199161
199224
199336
19943
199590
199641
199756
19982
199931
200024
200142
200216
20038
200410
20057
200619
20077
20086
20095
20107
201110
201211
201312
20143
20156
201612
201715
20187
20199
202011
202125
202211
20233
20243
Total749