A table of league-total baserunning numbers, via Baseball Prospectus. Note that:
EqGAR = Equivalent Ground Advancement Runs
EqSBR = Equivalent Stolen Base Runs
EqAAR = Equivalent Air Advancement Runs
EqHAR = Equivalent Hit Advancement Runs
EqOAR = Equivalent Other Advancement Runs
EqBRR = Equivalent Base Running Runs (Sum of all components)
| Year | EQGAR | EQSBR | EQAAR | EQHAR | EQOAR | EQBRR |
| 1985 | 0 | -155 | 4 | 0 | 0 | -150 |
| 1986 | 0 | -223 | 0 | 0 | 0 | -223 |
| 1987 | 0 | -143 | 0 | 0 | 0 | -143 |
| 1988 | 0 | -208 | 1 | 0 | 0 | -207 |
| 1989 | 0 | -217 | 1 | 0 | 0 | -215 |
| 1990 | 0 | -232 | 0 | 0 | 0 | -232 |
| 1991 | 0 | -293 | 2 | 0 | 0 | -291 |
| 1992 | 0 | -266 | 2 | 0 | 0 | -265 |
| 1993 | 0 | -292 | 0 | 0 | 0 | -291 |
| 1994 | 0 | -182 | 0 | 0 | 0 | -181 |
| 1995 | 0 | -197 | 0 | 0 | 0 | -197 |
| 1996 | 0 | -212 | 0 | 0 | 0 | -210 |
| 1997 | 0 | -340 | 1 | 0 | 0 | -338 |
| 1998 | 0 | -317 | 1 | 0 | 0 | -315 |
| 1999 | 0 | -299 | 0 | 0 | 0 | -298 |
| 2000 | 0 | -296 | 1 | 0 | 0 | -296 |
| 2001 | 0 | -321 | 2 | 0 | 0 | -318 |
| 2002 | 0 | -310 | 0 | 0 | 0 | -308 |
| 2003 | 0 | -172 | 0 | 0 | 0 | -170 |
| 2004 | 0 | -171 | 2 | 0 | 0 | -169 |
| 2005 | 0 | -174 | 1 | 0 | 0 | -171 |
| 2006 | 0 | -141 | 0 | 0 | 0 | -139 |
| 2007 | 0 | -47 | 0 | 0 | 0 | -45 |
| 2008 | 0 | -66 | 1 | 0 | 0 | -65 |
| 2009 | 0 | -88 | 1 | 0 | 0 | -85 |
I imagine this pattern continues as you go beyond 1985. I just got tired of copying and pasting.
Why is it that, over the past 25 seasons, BP has all Major League baserunners as contributing -5362 runs via stolen base attempts? Why does everything else add up to ~zero?