[Python] seaborn histplot output doesn't match with different range

I have a dataset and try to plot hist by seaborn:

sns.histplot(df.query('kms_driven<=100000'),x='kms_driven',binwidth=10000)
plt.show()


Output: code1

First bar has 851 points, second 1266.

And after that i try to plot another range:

sns.histplot(df.query('kms_driven<=200000'),x='kms_driven',binwidth=10000)
plt.show()


Output: code2

First bar has 851 points, second is not 1266(seems near 900).

I try to test this:

for i in range(0, 200000, 10000):
a = i
b = i + 10000
print(f'{a} - {b}:', df.query('kms_driven<=200000').query('(kms_driven <= @b) & (kms_driven > @a)').kms_driven.count())


Output:
0 - 10000: 851
10000 - 20000: 1266
20000 - 30000: 1404
30000 - 40000: 1325
40000 - 50000: 1180
50000 - 60000: 963
60000 - 70000: 753
70000 - 80000: 528
80000 - 90000: 345
90000 - 100000: 231
100000 - 110000: 125
110000 - 120000: 137
120000 - 130000: 28
130000 - 140000: 11
140000 - 150000: 24
150000 - 160000: 6
160000 - 170000: 2
170000 - 180000: 2
180000 - 190000: 2
190000 - 200000: 0


It is how must plot histogram. But second bar: 10000 - 20000 is different at 2 pictures.

Why it is possible?

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