*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19730
19740
19750
19760
19770
19780
19791
19800
19810
19820
19830
19840
19851
19860
19872
19881
19890
19907
199110
19924
19934
19943
19956
19967
19972
19986
19994
20002
200115
20021
20034
20042
20051
20060
20071
20080
20092
20100
20110
20126
201315
20140
20150
20163
20172
20185
20190
20200
20211
20221
20230
20240
Total121