,
(
500
1000
1500
2000
2500
3000
3500
4000
4500
)
1
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1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
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2677
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1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
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2677