Since China stepped up its anti-corruption campaign, 43 officials above vice provincial or ministerial levels have faced investigation in 2014. This is sharp increase compared to 2013, in which only 16 senior officials were probed.

And the drive shows no sign of slowing down in 2015 after three more senior officials were nabbed in the first month of the year.

After taking the helm of the Party at the 18th Party Congress in November 2012, President Xi Jinping has vowed to fight corruption, targeting both high-ranking "tigers" and lowly "flies".

By January 2015, as many as 63 officials above vice provincial or ministerial levels have been placed under investigation over the last two years.

Chinese Caixin financial magazine ran a report earlier this month that took a detailed look at the 63 "tigers", including their age, ranking, post, and what is to be expected from the "tiger-hunting" in the coming days.

Here's a rundown on the "tigers" caught in the anti-graft drive, courtesy of Caixin magazine.

Age - How old are the tigers?

Forty one out of the 63 investigated officials, or over 60 percent of them, were born between 1950 and 1960. And 15 were born after 1960 and 7 before 1950. Twenty seven of them are aged between 58 and 60.

The oldest one is Zhou Yongkang, former member of the Standing Committee of the Political Bureau of the CPC Central Committee, who was 71 when he was probed last year. The youngest is Ji Wenlin, former vice governor of Hainan province, who was born in July, 1966.

Rankings - How senior are the "tigers"?

There is one national level official, Zhou Yongkang and three deputy national level officials, Xu Caihou, former vice-chairman of the Central Military Commission, Ling Jihua and Su Rong, both of whom were vice chairmen of the Chinese People's Political Consultative Conference (CPPCC) National Committee.

Seven of them were provincial or ministerial level officials and 52 were of vice provincial or ministerial levels.