1

21.7

117,762

>1

7.8

41,962

Stage

I

23.8

128,833

II

28.5

154,422

III

27.7

150,308

IV

20

108,086

Surgery

Yes

92.6

501,584

No

7.4

39,878

Unknown

0.003

187

Chemotherapy

Yes

36.2

196,175

No

60.5

327,738

Unknown

3.3

17,736