Correct

激增

/ jīzēng / 
Strokes

Definition

to increase rapidly/to shoot up

Example

As a Verb

increase sharply; shoot up; soar; surge

1
Zhànhòu
战后
chūshēnglǜ
出生率
jīzēng
激增
  
。

After the war there was a bulge in the birth-rate.

2
Jīnnián
今年
fángzū
房租
jīzēng
激增
  
。

Rents have shot up this year.

3
Jīnnián
今年
shàngbànnián
上半年
de
的
yíngyèé
营业额
jīzēng
激增
  
。

The turnover in the first half of the year has soared.

4
Kōngqián
空前
jīzēng
激增
de
的
xūqiú
需求

unprecedented surge in demand

5
Xiāoshòu
销售
  
/
xìngqù
兴趣
jīzēng
激增

sudden increase in sales/interest

6
Tǐzhòng
体重
jīzēng
激增

gain much weight

7
Rénkǒu
人口
jīzēng
激增

sharp increase of population; exploding population; population shoots up

8
Chǎnliàng
产量
jīzēng
激增

steep rise in output; output/production soars