Interesting things to note:
- In a perfectly balanced round, each color level would have 6.67%. Since the removal of blood/TV star users from the game, a perfectly balanced round would have 7.69%. After the removal of white levels, the balance would be 8.33%, and as of the elimination of all yellow levels, the balanced percentage would now be 9.09%.
- Despite that 15 people, a pretty large sum, dropped out in the first round, nothing really changed from round 1 to 2 beyond the lack of TV stars and blood levels. The rest of the graph looks pretty much the same.
- Orange levels started out utterly dominating this group, having over twice as many users as the next most prevalent color level (L.Green), and stayed in the position of most dominant all the way until round 9, peaking at round four with just under 30% of all the players being orange level. At round 9, silver -- which started off as the sixth-lowest color level, having a measly 4.27% -- usurped orange as the most common, and stayed in that position until the current round, where orange and silver are now tied, comprising a whopping 45.16% of the entire cast.

Additionally, 50% of the players for each of the first two rounds were from one of the bottom four color levels.

Here is a list of which color levels were the most prevalent each round. I may make a line graph to show the relative prevalence over time.

There is no data from round eight.

ROUND ONE COLOR LEVEL RANKING:
1. Orange (23.93%)
2. L.Green (11.11%)
3. Black (10.26%)
4. White (7.69%)
4. Blue (7.69%)
6. Yellow (6.84%)
7. Red (5.98%)
7. D.Green (5.98%)
9. Gold (5.13%)
10. Silver (4.27%)
11. Brown (3.42%)
11. Purple (3.42%)
13. Sky (1.71%)
13. TV Star (1.71%)
15. Blood (0.85%)

ROUND TWO COLOR LEVEL RANKING:
1. Orange (28.43%)
2. Black (13.73%)
3. L.Green (7.84%)
3. Yellow (7.84%)
5. Blue (6.86%)
6. D.Green (5.88%)
6. Red (5.88%)
6. White (5.88%)
6. Gold (5.88%)
10. Silver (3.92%)
11. Brown (2.94%)
11. Purple (2.94%)
13. Sky (1.96%)
15. Blood; TV Star (0%)

ROUND THREE COLOR LEVEL RANKING:
1. Orange (28.24%)
2. Black (10.59%)
3. L.Green (9.41%)
4. Blue (8.24%)
4. Silver (8.24%)
6. Red (7.06%)
6. Yellow (7.06%)
8. Gold (5.88%)
9. Brown (4.71%)
10. White (3.53%)
10. D.Green (3.53%)
12. Purple (2.35%)
13. Sky (1.18%)
15. Blood; TV Star (0%)

ROUND FOUR COLOR LEVEL RANKING:
1. Orange (29.73%)
2. Black (14.86%)
3. Silver (9.46%)
3. L.Green (9.46%)
5. Yellow (8.11%)
6. Gold (6.76%)
7. Blue (5.41%)
7. Purple (5.41%)
9. Brown (4.05%)
10. Red (2.7%)
10. D.Green (2.7%)
12. Sky (1.35%)
15. Blood; TV Star (0%)

ROUND FIVE COLOR LEVEL RANKING:
1. Orange (22.45%)
2. Blue (14.29%)
2. Black (14.29%)
4. Silver (12.24%)
5. L.Green (10.2%)
6. Purple (8.16%)
7. Gold (6.12%)
8. Yellow (4.08%)
8. Brown (4.08%)
10. Red (2.04%)
10. Sky (2.04%)
15. White; D.Green; Blood; TV Star (0%)

ROUND SIX COLOR LEVEL RANKING:
1. Orange (17.39%)
2. Blue (15.22%)
2. L.Green (15.22%)
4. Silver (13.04%)
4. Black (13.04%)
6. Purple (8.7%)
7. Brown (4.35%)
7. Gold (4.35%)
7. Yellow (4.35%)
10. D.Green (2.17%)
10. Sky (2.17%)
15. White; Red; Blood; TV Star (0%)

ROUND SEVEN COLOR LEVEL RANKING:
1. Orange (14.29%)
1. Silver (14.29%)
1. L.Green (14.29%)
4. Black (11.9%)
5. Blue (9.52%)
6. Purple (7.14%)
6. Brown (7.14%)
8. Gold (4.76%)
8. Yellow (4.76%)
8. D.Green (4.76%)
8. Red (4.76%)
12. Sky (2.38%)
15. White; Blood; TV Star (0%)

ROUND NINE COLOR LEVEL RANKING:
1. Silver (18.42%)
2. Orange (13.16%)
2. Black (13.16%)
4. L.Green (10.53%)
5. Brown (7.89%)
5. Blue (7.89%)
7. Red (5.26%)
7. Purple (5.26%)
7. D.Green (5.26%)
7. Yellow (5.26%)
7. Gold (5.26%)
12. Sky (2.63%)
15. White; Blood; TV Star (0%)

ROUND TEN COLOR LEVEL RANKING:
1. Silver (20%)
2. Orange (14.29%)
3. L.Green (8.57%)
3. Blue (8.57%)
3. Red (8.57%)
3. Brown (8.57%)
7. D.Green (5.71%)
7. Purple (5.71%)
7. Black (5.71%)
7. Gold (5.71%)
7. Yellow (5.71%)
12. Sky (2.86%)
15. White; Blood; TV Star (0%)

ROUND ELEVEN COLOR LEVEL RANKINGS:
1. Silver (24.24%)
2. Orange (15.15%)
3. Red (12.12%)
4. Blue (9.09%)
5. Yellow (6.06%)
5. D.Green (6.06%)
5. Brown (6.06%)
5. Black (6.06%)
5. Gold (6.06%)
5. Purple (6.06%)
11. Sky (3.03%)
15. White; L.Green; Blood; TV Star (0%)

ROUND TWELVE COLOR LEVEL RANKING:
1. Silver (23.53%)
2. Orange (14.71%)
3. Brown (11.76%)
4. Red (8.82%)
5. Yellow (5.88%)
5. D.Green (5.88%)
5. Blue (5.88%)
5. Purple (5.88%)
5. Black (5.88%)
5. Gold (5.88%)
11. L.Green (2.94%)
11. Sky (2.94%)
15. White; Blood; TV Star (0%)

ROUND THIRTEEN COLOR LEVEL RANKING:
1. Silver (20.59%)
2. Orange (14.72%)
3. Brown (11.76%)
4. Red (8.82%)
4. Gold (8.82%)
6. Yellow (5.88%)
6. D.Green (5.88%)
6. Blue (5.88%)
6. Purple (5.88%)
6. Black (5.88%)
11. L.Green (2.94%)
11. Realitynerd (2.94%)
15. White; Blood; TV Star (0%)

ROUND FOURTEEN COLOR LEVEL RANKING:
1. Silver (21.88%)
2. Orange (15.63%)
3. Blue (9.38%)
3. Black (9.38%)
3. Red (9.38%)
6. Yellow (6.25%)
6. Purple (6.25%)
6. Brown (6.25%)
6. Gold (6.25%)
10. L.Green (3.13%)
10. D.Green (3.13%)
10. Sky (3.13%)
15. White; Blood; TV Star (0%)

ROUND FIFTEEN COLOR LEVEL RANKING:
1. Silver (21.88%)
2. Orange (15.63%)
3. Blue (9.38%)
3. Red (9.38%)
3. Gold (9.38%)
6. Yellow (6.25%)
6. Purple (6.25%)
6. Brown (6.25%)
6. Black (6.25%)
10. L.Green (3.13%)
10. D.Green (3.13%)
10. Sky (3.13%)
15. White; Blood; TV Star

ROUND SIXTEEN COLOR LEVEL RANKINGS:
1. Silver (22.58%)
1. Orange (22.58%)
3. Blue (12.9%)
4. Brown (9.68%)
4. Gold (9.68%)
6. Red (6.45%)
6. Purple (6.45%)
8. L.Green (3.23%)
8. Black (3.23%)
8. Sky (3.23%)
15. White; Yellow; D.Green; Blood; TV Star (0%)

I will try and convert this into a line graph whenever I have the time/effort.