*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19702531602064
197013230119
1971311038
1972501028
1973403029
19745060213
197518080430
197620080533
19779570627
197835260750
1979434180772
1980161100734
1981811801340
1982451001534
198374140530
198452701125
19851151201139
19861482001254
19871492601665
1988382229016105
19891152501354
1990683501059
19913555508103
1992944901274
199323990012134
1994282136017183
1995141399016142
19969588012114
199792116017144
19986710709129
19992215601493
200070110021138
2001102100016128
200293129017158
2003124177117211
200462128016152
2005106195018229
2006192220023264
200754199022230
200888223019258
2009892286028405
2010484348027427
2011772349036464
2012146479062561
20131515475147553
20142212527074635
2015266641093766
2016348815098955
2017341188511001031
2018276100001241157
20192489710821085
202045410230811153
2021451510780971235
2022292109701111239
2023318118001171336
20243810127301211442
2025165620588
202620301015
Total1171290150523178718303