*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19701040813
1970000000
1971002002
1972000000
1973000000
1974062008
1975023016
1976020013
1977017019
19780260210
1979023016
1980002002
1981015017
19821170110
1983105006
1984003025
1985123017
19861180212
19871580216
198821130218
198910120316
199021080323
199165160128
199221160120
199376270343
199477230542
199534240334
199643250133
1997210330348
199858320348
199902280838
200003300336
200125350244
200200410445
200314370345
200402290536
200522570263
200602440551
200720540460
200800760379
20092014503150
20105022102228
20116124104252
201262354013375
201322249110264
201440162013179
201582205018233
201620258122283
201791353025388
201891414014438
201910134408363
202062445017470
202151374123404
202210316120338
2023007007
2024006006
Total129113482242825350