Roughly 2 percent — or 106 of 4,964 — of hospitals reporting staffing levels in the U.S. are experiencing critical staffing shortages, according to HHS data posted December 21.

A critical staffing shortage is based on a facility's needs and internal policies for staffing ratios, according to HHS. Hospitals using temporary staff to meet staffing ratios are not counted among those experiencing a shortage.

Meanwhile, about 5 percent — or 264 of 4,964 — of hospitals reporting staffing levels in the U.S. are anticipating shortages in the next week.

Some hospitals do not report their numbers.

Below are two lists showing current staffing shortages and anticipated shortages.

Percent of hospitals in each state and the District of Columbia experiencing critical staffing shortages, ranked in descending order:

1. Maryland: 22.92 percent

2. South Carolina: 16.67 percent

3. Michigan: 16.34 percent

4. Delaware: 10.0 percent

5. Virginia: 9.57 percent

6. Vermont: 7.14 percent (tie)

6. Rhode Island: 7.14 percent (tie)

8. Alaska: 5.56 percent

9. Indiana: 4.5 percent

10. Kansas: 3.97 percent

11. Wisconsin: 3.68 percent

12. Montana: 3.51 percent

13. Nevada: 2.33 percent

14. Georgia: 2.17 percent

15. Missouri: 1.8 percent

16. Tennessee: 1.77 percent

17. Oregon: 1.75 percent

18. California: 1.48 percent

19. Florida: 1.47 percent

20. Illinois: 1.2 percent

21. New Jersey: 1.16 percent

22. Kentucky: 1.01 percent

23. Texas: 0.89 percent (tie)

23. North Carolina: 0.89 percent (tie)

25. Louisiana: 0.71 percent

26. Ohio: 0.55 percent (tie)

26. Pennsylvania: 0.55 percent (tie)

26. Washington: 0.0 percent (tie)

26. West Virginia: 0.0 percent (tie)

26. Oklahoma: 0.0 percent (tie)

26. Utah: 0.0 percent (tie)

26. South Dakota: 0.0 percent (tie)

26. North Dakota: 0.0 percent (tie)

26. Alabama: 0.0 percent (tie)

26. New York: 0.0 percent (tie)

26. Idaho: 0.0 percent (tie)

26. Arizona: 0.0 percent (tie)

26. Arkansas: 0.0 percent (tie)

26. Colorado: 0.0 percent (tie)

26. Connecticut: 0.0 percent (tie)

26. District of Columbia: 0.0 percent (tie)

26. Hawaii: 0.0 percent (tie)

26. Iowa: 0.0 percent (tie)

26. New Mexico: 0.0 percent (tie)

26. Maine: 0.0 percent (tie)

26. Massachusetts: 0.0 percent (tie)

26. Minnesota: 0.0 percent (tie)

26. Mississippi: 0.0 percent (tie)

26. Nebraska: 0.0 percent (tie)

26. New Hampshire: 0.0 percent (tie)

26. Wyoming: 0.0 percent (tie)

Percent of hospitals in each state and the District of Columbia anticipating critical staffing shortages within the next week, ranked in descending order:

1. New Mexico: 28.57 percent

2. Maryland: 27.08 percent

3. Michigan: 18.3 percent

4. South Carolina: 16.67 percent

5. Missouri: 16.22 percent

6. Arkansas: 13.79 percent

7. Hawaii: 13.64 percent

8. Virginia: 11.7 percent

9. Tennessee: 11.5 percent

10. Delaware: 10.0 percent

11. Pennsylvania: 9.84 percent

12. Oklahoma: 9.02 percent

13. Wisconsin: 8.82 percent

14. Rhode Island: 7.14 percent (tie)

14. Vermont: 7.14 percent (tie)

16. Kentucky: 7.07 percent

17. California: 6.53 percent

18. North Carolina: 6.25 percent

19. Kansas: 5.56 percent (tie)

19. Alaska: 5.56 percent (tie)

21. Indiana: 5.41 percent

22. Montana: 5.26 percent

23. North Dakota: 5.0 percent

24. Minnesota: 4.69 percent

25. New Jersey: 4.65 percent

26. Nebraska: 4.44 percent

27. Alabama: 4.04 percent

28. Wyoming: 3.85 percent

29. Connecticut: 3.23 percent

30. Maine: 2.86 percent

31. Nevada: 2.33 percent

32. Idaho: 2.22 percent

33. Louisiana: 2.14 percent

34. Florida: 1.96 percent

35. Oregon: 1.75 percent

36. Ohio: 1.65 percent

37. Georgia: 1.45 percent

38. Illinois: 1.2 percent

39. Arizona: 1.18 percent

40. Mississippi: 1.03 percent

41. Texas: 0.89 percent

42. Iowa: 0.0 percent (tie)

42. New York: 0.0 percent (tie)

42. Massachusetts: 0.0 percent (tie)

42. South Dakota: 0.0 percent (tie)

42. District of Columbia: 0.0 percent (tie)

42. Utah: 0.0 percent (tie)

42. New Hampshire: 0.0 percent (tie)

42. Colorado: 0.0 percent (tie)

42. Washington: 0.0 percent (tie)

42. West Virginia: 0.0 percent (tie)