The required experience points for Ness to advance to each level.
Note, he STARTS at level 1, so there is no experience requirement.

1  - 0
2  - 4
3  - 17
4  - 44
5  - 109
6  - 236
7  - 449
8  - 772
9  - 1229
10 - 1844
11 - 3644
12 - 4877
13 - 6364
14 - 8129
15 - 10703
16 - 13241
17 - 16214
18 - 19673
19 - 23669
20 - 28253
21 - 33476
22 - 39389
23 - 46043
24 - 53489
25 - 61778
26 - 70961
27 - 81089
28 - 92213
29 - 104384
30 - 117653
31 - 132071
32 - 147689
33 - 164558
34 - 182729
35 - 202270
36 - 223249
37 - 245734
38 - 269973
39 - 295494
40 - 322905
41 - 352094
42 - 383129
43 - 416078
44 - 451009
45 - 487990
46 - 527089
47 - 568374
48 - 611913
49 - 657774
50 - 706025
51 - 756734
52 - 809969
53 - 865798
54 - 942289
55 - 985510
56 - 1049529
57 - 1116414
58 - 1186233
59 - 1259054
60 - 1335030
61 - 1414314
62 - 1497059
63 - 1583418
64 - 1673544
65 - 1767590
66 - 1865709
67 - 1968054
68 - 2074778
69 - 2186034
70 - 2301975
71 - 2422754
72 - 2548524
73 - 2679438
74 - 2815649
75 - 2957310
76 - 3104574
77 - 3257594
78 - 3416523
79 - 3581514
80 - 3752720
81 - 3930294
82 - 4114389
83 - 4305158
84 - 4502754
85 - 4707330
86 - 4919039
87 - 5138034
88 - 5364468
89 - 5598494
90 - 5840265
91 - 6089934
92 - 6347654
93 - 6613578
94 - 6887859
95 - 7170650
96 - 7462104
97 - 7762374
98 - 7762374
99 - 8071613