*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970010001
1970001001
1971000000
1972000000
1973000000
1974000000
1975003003
1976012003
1977001001
1978012003
1979000000
1980000000
1981010001
1982013004
1983000000
1984011002
1985010001
1986121004
1987036009
1988013004
198914160021
199011610018
1991051006
199229150098
19930225300228
19943808900820
19950568300571
19960621100622
19970253500258
19981533400538
19991223300227
200017651500781
20010619600625
200207841200796
200327191500736
20040862500867
20052178600186
200603752000395
200713413400376
200802841800302
200901313400165
201003706100431
20110955100146
201232603200295
2013123265100389
201404647100535
201564128000498
201625768000658
2017263311600751
2018168713700825
2019254514500692
2020376119300957
2021261313700752
2022667816900853
2023001001
2024000000
Total551483815630016456