Jackie Robinson...cleanup hitter?

From the you-learn-something-new-every-day department, the Hardball Times reports on some new Retrosheet data on Jackie Robinson, by batting-order position:

Position  AB   R   H  2B 3B HR RBI HP  BB  SO SF   BA  OBA   SA
First     80  15  25   6  1  1  14  0  10   7  0 .313 .389 .450
Second   999 205 288  55 12 22 110 18 120  66  0 .288 .375 .433
Third    645 130 207  32  4 20  90 12 110  41  0 .321 .429 .476
Fourth  2483 496 818 157 32 79 439 35 382 139  2 .329 .426 .514
Fifth    112  18  31   5  0  1  12  2  18   9  0 .277 .386 .348
Sixth    290  47  84  12  5  7  45  3  58  12  5 .290 .407 .438
Seventh  191  26  48   3  0  6  17  2  34  10  1 .251 .368 .361
Eighth    49   7  12   1  0  1   5  0   6   2  1 .245 .321 .327
Ninth     28   3   5   2  0  0   2  0   4   4  0 .179 .281 .250

I always assumed Robinson was a top-of-the-order hitter - either leadoff or #2 - given his speed. I never would have guessed that he was primarily a cleanup hitter.