Total volume grew 13.
( ( Total volume ) ( ( grew 13 ) . ) )
(ROOT (S (NP (JJ Total) (NN volume)) (VP (VBD grew) (NP (CD 13))) (. .)))
There was an increase in volume of 13.
( There ( ( was ( ( an increase ) ( in ( volume ( of 13 ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBD was) (NP (NP (DT an) (NN increase)) (PP (IN in) (NP (NP (NN volume)) (PP (IN of) (NP (CD 13))))))) (. .)))