If the load was 99 tonnes there were probably less than 20,000.
1	If	if	SCONJ	IN	_	6	mark	6:mark	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	3:det	_
3	load	load	NOUN	NN	Number=Sing	6	nsubj	6:nsubj	_
4	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	6	cop	6:cop	_
5	99	99	NUM	CD	NumForm=Digit|NumType=Card	6	nummod	6:nummod	_
6	tonnes	tonne	NOUN	NNS	Number=Plur	8	advcl	8:advcl:if	_
7	there	there	PRON	EX	_	8	expl	8:expl	_
8	were	be	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
9	probably	probably	ADV	RB	_	8	advmod	8:advmod	_
10	less	less	ADJ	JJR	Degree=Cmp|ExtPos=ADV	12	advmod	12:advmod	_
11	than	than	ADP	IN	_	10	fixed	10:fixed	_
12	20,000	20000	NUM	CD	NumForm=Digit|NumType=Card	8	nsubj	8:nsubj	SpaceAfter=No
13	.	.	PUNCT	.	_	8	punct	8:punct	_
