WSJ's best and worst jobs

The top and bottom 5:

1. Software engineer
2. Actuary
3. Human resources manager
4. Dental hygienist
5. Financial planner

196. Newspaper reporter
197. Oil rig worker
198. Enlisted military soldier
199. Dairy farmer
200. Lumberjack

Where do they get this stuff?  I can see the bottom four: long hours and, in most cases, dangerous working conditions.  But I do not see queues of undergrads and MBAs lining up for positions in HR or financial planning.  And dental hygienists????