Which tennis players won the most prize money in history?

Apart from prestige and ATP / WTA points, winning a Grand Slam makes tennis players a lot of money. The Australian Open and Roland Garros have been known to award around 2 million dollars to its winners, while the US Open and Wimbledon hand out prize money of around 3 million.

Obviously, the prizes have increased over the years. This means that the list of tennis players who've won the most money in history tends to have a lot of players on it from the last 20 years. Still, we can also  find some of the 'older' tennis legends on our list of best earning champions.

Earnings in prize money: $147,744,252

Earnings: $129,981,743

Earnings: $123,843,596

Earnings: $94,236,271

Earnings: $61,832,826

Earnings: $43,280,489

Earnings: $42,065,362

Earnings: $38,777,962

Prize money: $37,426,198

Prize money: $35,233,415

Earnings: $34,778,261

Earnings: $32,762,802

Earnings: $32,458,760

Earnings: $31,483,911

Earnings: $31,152,975

Earnings: $29,950,250

Earnings: $29,491,328

Earnings: $28,567,121

Earnings: $28,381,805

Earnings: $27,683,807

Earnings: $25,889,586

Prize money: $25,617,078

Earnings: $25,080,956

Earnings: $24,749,074

Earnings: $24,422,695

Earnings: $24,238,379

Earnings: $23,883,797

Earnings: $23,843,799

Earnings: $22,179,851

Earnings: $22,166,338

Earnings: $21,895,277

Prize money: $21,693,823

Earnings: $21,626,089

Prize money: $21,262,417

Prize money: $20,889,965

Earnings: $20,863,335

Earnings: $20,640,030

Prize money: $20,613,441

Earnings: $20,599,271

Prize money: $20,147,127

Prizes won: $20,076,456