*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970013004
1970000000
1971000000
1972000000
1973000000
1974002002
1975013004
1976030003
1977000000
1978010001
1979010001
1980010001
1981000000
1982002002
1983000000
1984010001
1985000000
1986015006
198704110015
198801170018
19891390013
199001510016
19911920012
199243630043
19930112200114
19941365500371
19950275600281
19960373300376
19971213500219
19980304400308
199908920091
20000445500450
20010268600274
20020296700303
200303471000357
20040421900430
20050152900161
200612071100219
200712592400284
200801751900194
2009321260050
201001255100176
201101343900173
201201951400209
201302644200306
201442655200321
201513405600397
201613088300392
201703698900458
201814509600547
2019438811000502
2020448911900612
202124109700509
2022150513600642
2023012003
2024000000
Total3186431197009871