My session stats is 18.6/13.2/af3.69/3bet2.6 751 hands

The villain is 31/19/af1.1/3bet6.3 463 hands

His range on river?

Raise/Fold or Raise/Call?

Sizing is everything because if you raise too big you have to call a shove.

$1/$2 No Limit Hold'em Cash, 6 Players

Hero (CO): $402.25 (201.1 bb)
BTN: $394.15 (197.1 bb)
SB: $203 (101.5 bb)
BB: $201.55 (100.8 bb)
UTG: $200 (100 bb)
MP: $93.35 (46.7 bb)

Preflop: Hero is CO with 9 9
2 folds, Hero raises to $6, 2 folds, BB calls $4

Flop: ($13) A A T (2 players)
BB checks, Hero checks

Turn: ($13) J (2 players)
BB checks, Hero checks

River: ($13) 9 (2 players)
BB checks, Hero bets $6.50, BB raises to $32.50, Hero ???