What correlation are you assuming, 15% flat for twenty years?
1	What	what	DET	WDT	PronType=Int	2	det	2:det	_
2	correlation	correlation	NOUN	NN	Number=Sing	5	obj	5:obj	_
3	are	be	AUX	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	5	aux	5:aux	_
4	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	5	nsubj	5:nsubj	_
5	assuming	assume	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	0:root	SpaceAfter=No
6	,	,	PUNCT	,	_	5	punct	5:punct	_
7	15	15	NUM	CD	NumForm=Digit|NumType=Card	8	nummod	8:nummod	SpaceAfter=No
8	%	%	SYM	NN	Number=Sing	5	parataxis	5:parataxis	_
9	flat	flat	ADJ	JJ	Degree=Pos	8	amod	8:amod	_
10	for	for	ADP	IN	_	12	case	12:case	_
11	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	12	nummod	12:nummod	_
12	years	year	NOUN	NNS	Number=Plur	8	nmod	8:nmod:for	SpaceAfter=No
13	?	?	PUNCT	.	_	5	punct	5:punct	_
