N   DVD
1  5.912719
2  6.208599
3  6.348661
4  6.076856
5  5.686993
6  5.912882
7  5.833645
8  5.978604
9  6.002493
10 6.401607
11 6.999804
12 6.560939
13 6.674650
14 5.659873
15 6.676123
16 6.326584
17 6.464930
18 6.918858
19 6.124554
20 5.675699
21 5.682035
22 6.459246
23 6.988531
24 7.380283
25 5.743691
26 5.977813
27 5.867675
28 6.029637
29 5.286061
30 6.569059
31 6.537281
32 6.326435
33 6.636172
34 6.534151
35 5.199409
36 6.187668