Mirror, mirror, on the wall, who are the top-earning CEOs of them all?

A new report from the Associated Press and the research firm Equilar has some answers, and once again, many of the highest earners among execs running large companies are pharma and health care CEOs.

Consider Dr. Leonard S. Schleifer, the head of Regeneron Pharmaceuticals, based in Tarrytown, N.Y. His total compensation in 2015? More than $47 million. If he were working at New York state’s minimum wage — $9 an hour — it would have taken him well over 5 million hours to earn that much. That’s about 600 years of work without stopping to eat or sleep.

(Regeneron, by the way, just announced it’ll spend $100 million over the next decade to sponsor the nation’s largest high school science competition.)

Next on the list is Dr. Jeffrey M. Leiden, of Vertex Pharmaceuticals in Boston, at $28 million. That actually represents a pretty hefty pay cut for Leiden. He earned more than $36 million in 2014, which raised a few eyebrows given that the company had turned a profit just once in the previous quarter-century.

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Larry J. Merlo, of CVS Health, clocks in at number 3 among health-care execs. His total compensation last year was just shy of $23 million — a 6 percent drop from the year before.

Here are the top 20 earners in the health care field, from the AP and Equilar, which analyzed CEO pay at hundreds of companies on the S&P 500:

1. Leonard S. Schleifer, Regeneron Pharmaceuticals, $47,462,526
2. Jeffrey M. Leiden, Vertex Pharmaceuticals, $28,099,826
3. Larry J. Merlo, CVS Health, $22,855,374
4. Robert J. Hugin, Celgene, $22,472,912
5. Alex Gorsky, Johnson & Johnson, $21,128,866
6. Michael F. Neidorff, Centene, $20,755,103
7. Alan B. Miller, Universal Health Services, $20,427,309
8. Kenneth C. Frazier, Merck & Co., $19,898,438
9. Miles D. White, Abbott Laboratories, $19,410,704
10. John C. Martin, Gilead Sciences, $18,755,952
11. Richard A. Gonzalez, AbbVie, $18,534,310
12. Heather Bresch, Mylan, $18,162,852
13. David M. Cordani, Cigna, $17,307,672
14. Mark T. Bertolini, Aetna, $17,260,806
15. George A. Scangos, Biogen, $16,874,386
16. Robert L. Parkinson, Baxter International, $16,648,750
17. John C. Lechleiter, Eli Lilly & Co, $16,562,500
18. Marc N. Casper, Thermo Fisher Scientific, $16,307,079
19. Robert A. Bradway, Amgen, $16,097,714
20. George Paz, Express Scripts Holding, $14,835,587

Total CEO compensation includes salary, bonus, stock and stock option awards, and other perks.