> <think>
We are given an "Experience Table" in the book. The table lists levels and the total experience required to reach each level. The maximum level in RuneScape for a skill is level 99. We need to find the level at which the experience required is half of the experience required for level 99.

First, we need to find the total experience required for level 99. From the "Experience Table":

Level 99: 13,034,431 experience.

So, half of that is: 13,034,431 / 2 = 6,517,215.5 (we can consider 6,517,216 since experience is integer-based).

Now, we need to look through the table to find the level where the cumulative experience is at least 6,517,216.

Let me reconstruct the table from the book:

Level 1: 0
Level 2: 83
Level 3: 174
Level 4: 276
Level 5: 388
Level 6: 512
Level 7: 650
Level 8: 801
Level 9: 969
Level 10: 1,154
Level 11: 1,358
Level 12: 1,584
Level 13: 1,833
Level 14: 2,107
Level 15: 2,411
Level 16: 2,746
Level 17: 3,115
Level 18: 3,523
Level 19: 3,973
Level 20: 4,470
Level 21: 5,018
Level 22: 5,624
Level 23: 6,291
Level 24: 7,028
Level 25: 7,842
Level 26: 8,740
Level 27: 9,730
Level 28: 10,824
Level 29: 12,031
Level 30: 13,363
Level 31: 14,833
Level 32: 16,456
Level 33: 18,247
Level 34: 20,224
Level 35: 22,406
Level 36: 24,815
Level 37: 27,473
Level 38: 30,408
Level 39: 33,648
Level 40: 37,224
Level 41: 41,171
Level 42: 45,529
Level 43: 50,339
Level 44: 55,649
Level 45: 61,512
Level 46: 67,983
Level 47: 75,127
Level 48: 83,014
Level 49: 91,721
Level 50: 101,333
Level 51: 111,945
Level 52: 123,660
Level 53: 136,594
Level 54: 150,872
Level 55: 166,636
Level 56: 184,040
Level 57: 203,254
Level 58: 224,466
Level 59: 247,886
Level 60: 273,742
Level 61: 302,288
Level 62: 333,804
Level 63: 368,599
Level 64: 407,015
Level 65: 449,428
Level 66: 496,254
Level 67: 547,953
Level 68: 605,032
Level 69: 668,051
Level 70: 737,627
Level 71: 814,445
Level 72: 899,257
Level 73: 992,895
Level 74: 1,096,278
Level 75: 1,210,421
Level 76: 1,336,443
Level 77: 1,475,581
Level 78: 1,629,200
Level 79: 1,798,808
Level 80: 1,986,068
Level 81: 2,192,818
Level 82: 2,421,087
Level 83: 2,673,114
Level 84: 2,951,373
Level 85: 3,258,594
Level 86: 3,597,792
Level 87: 3,972,294
Level 88: 4,385,776
Level 89: 4,842,295
Level 90: 5,346,332
Level 91: 5,902,831
Level 92: 6,517,253
Level 93: 7,195,629
Level 94: 7,944,614
Level 95: 8,771,558
Level 96: 9,684,577
Level 97: 10,692,629
Level 98: 11,805,606
Level 99: 13,034,431

We need the first level where the cumulative experience is >= 6,517,216.

Looking at the table:

- Level 92: 6,517,253 experience.

Level 92 has 6,517,253 which is just above 6,517,216 (half of level 99's experience). 

But note: The experience for level 92 is the total required to reach level 92. So at the beginning of level 92, you have 6,517,253 experience. However, we are looking for the point where the total experience is half of level 99, which is 6,517,215.5.

Since level 92 requires 6,517,253 to reach, that means at level 92 you have just passed the half-way mark.

Now, what about level 91? Level 91: 5,902,831. That is less than 6,517,216. So when you are at level 91, you have not yet reached the half-way point.

When you reach level 92, you have 6,517,253 experience, which is more than half of level 99's experience.

Therefore, the level at which you have half the experience of max level (99) is level 92.

But note: The question is "what level are you at when you get to half the xp of max level?" So when your total experience reaches 6,517,216, you are still level 91 until you get the next level. However, level 91 requires 5,902,831, and you are accumulating experience toward level 92. When you reach 6,517,216, you are still level 91 because you haven't hit 6,517,253 for level 92. But note that the experience for level 92 is the total required to be at level 92, so at 6,517,253 you become level 92.

However, the half-way point (6,517,216) is between level 91 and 92.

Specifically:

- To be level 91, you need at least 5,902,831 experience.
- To be level 92, you need at least 6,517,253 experience.

So at 6,517,216 experience, you are still level 91 because you haven't reached the 6,517,253 required for level 92.

Therefore, the level is 91 when you have half the experience (but note that the half experience is 6,517,215.5, and at 6,517,216 you are still level 91).

But let's check the exact values:

Level 91: 5,902,831
Level 92: 6,517,253

So the experience required to go from level 91 to 92 is: 6,517,253 - 5,902,831 = 614,422.

At level 91, you have 5,902,831. To get to the halfway point, you need an additional: 6,517,216 - 5,902,831 = 614,385.

So when you have 614,385 experience beyond level 91, you reach the halfway point. But you are still level 91 until you get to 6,517,253.

Thus, when you reach half the experience of level 99, you are still at level 91.

But to be precise, the level is 91.

However, note that the experience table in the book lists the total experience needed to reach that level. So at the moment you have 13,034,431/2 = 6,517,215.5 experience, you have not yet reached the requirement for level 92 (which is 6,517,253), so you are level 91.

Therefore, the answer is level 91.

But wait, let me confirm the level 91 and 92 values:

Level 91: 5,902,831
Level 92: 6,517,253

Half of level 99: 13,034,431 / 2 = 6,517,215.5

Since 6,517,215.5 is greater than 5,902,831 (level 91) and less than 6,517,253 (level 92), you are level 91 when you have half the experience.

So the answer is level 91.
</think>
Based on the provided "Experience Table" from the book, the total experience required to reach level 99 (max level) is **13,034,431 XP**. Half of this amount is **6,517,215.5 XP**.

Reviewing the experience thresholds:
- **Level 91** requires **5,902,831 XP** to reach.
- **Level 92** requires **6,517,253 XP** to reach.

Since **6,517,215.5 XP** (half of level 99's XP) is:
- Greater than the XP for level 91 (5,902,831 XP)
- Less than the XP for level 92 (6,517,253 XP)

This means that when you reach **half the XP of max level (6,517,215.5 XP)**, you are still at **level 91** because you haven't accumulated enough XP to advance to level 92. At this point, you are accumulating XP toward level 92 but remain within the level 91 range.

**Answer: Level 91**