Edit: OMG so embarrassed I completely missed that vonklaude had already posted to the nearest 10th. Hope that the percentage breakdown is useful at least
Sorry to double post, but here are the lists expressed as percentages of daily XP and as number or encounters rounded to the nearest tenth.
Most interesting to me here is that when rounding to the nearest 10th, you end up with an average range of 4.4 Hard to 6.6 Medium. So again, I would argue that the 6-8 rule of thumb guideline is an artifact of a previous iteration and the PHB should read 4 to 7 Medium to Hard or 3 Deadly.
Level Easy Medium Hard Deadly
1 8.3% 16.7% 25.0% 33.3%
2 8.3% 16.7% 25.0% 33.3%
3 6.3% 12.5% 18.8% 33.3%
4 7.4% 14.7% 22.1% 29.4%
5 7.1% 14.3% 21.4% 31.4%
6 7.5% 15.0% 22.5% 35.0%
7 7.0% 15.0% 22.0% 34.0%
8 7.5% 15.0% 23.3% 35.0%
9 7.3% 14.7% 21.3% 32.0%
10 6.7% 13.3% 21.1% 31.1%
11 7.6% 15.2% 22.9% 34.3%
12 8.7% 17.4% 26.1% 39.1%
13 8.1% 16.3% 25.2% 37.8%
14 8.3% 16.7% 25.3% 38.0%
15 7.8% 15.6% 23.9% 35.6%
16 8.0% 16.0% 24.0% 36.0%
17 8.0% 15.6% 23.6% 35.2%
18 7.8% 15.6% 23.3% 35.2%
19 8.0% 16.3% 24.3% 36.3%
20 7.0% 14.3% 21.3% 31.8%
Average 7.6% 15.3% 23.1% 34.4%
Level Easy Medium Hard Deadly
1 12.0 6.0 4.0 3.0
2 12.0 6.0 4.0 3.0
3 16.0 8.0 5.3 3.0
4 13.6 6.8 4.5 3.4
5 14.0 7.0 4.7 3.2
6 13.3 6.7 4.4 2.9
7 14.3 6.7 4.5 2.9
8 13.3 6.7 4.3 2.9
9 13.6 6.8 4.7 3.1
10 15.0 7.5 4.7 3.2
11 13.1 6.6 4.4 2.9
12 11.5 5.8 3.8 2.6
13 12.3 6.1 4.0 2.6
14 12.0 6.0 3.9 2.6
15 12.9 6.4 4.2 2.8
16 12.5 6.3 4.2 2.8
17 12.5 6.4 4.2 2.8
18 12.9 6.4 4.3 2.8
19 12.5 6.1 4.1 2.8
20 14.3 7.0 4.7 3.1
Average 13.2 6.6 4.4 2.9