January-May

June-August

Total

Tons

Percent

Tons

Percent

Tons

Percent

Hanoi - Yen Vien 164 26 472 74 636 100
 Yen Vien - Lao Cai 577 26 1,636 74 2,213 100
 Yen Vien - Dong Dang 564 22 1,983 78 2,547 100
 Gia Lam - Haiphong 16 2 729 98 745 100
 Kinh No - Thai Nguyen 503 29 1,242 71 1,745 100
 Thai Nguyen - Kep 218 15 1,220 85 1,438 100
 Total on lines wholly located north of the 20th Parallel 2,042 22 7,282 78 9,324 100
 Hanoi-Vinh 7,744 65 4,113 35 11,857 100
 Total on all railroads 9,786 46 11,395 54 21,181 100

During the period January-May, attacks against
 railroads in the northern route packages were carried
 out during 57 days -- about 38 percent of the 151-day
 period. The intensity of the latest campaign
 against these railroads is indicated by an increase
 in the share of days they were under attack to almost
 85 percent of the June-August period. Similarly,
 the share of days that the Hanoi-Vinh railroad was
 attacked rose from 89 percent during January-May to
 about 95 percent during June-August. The following
 tabulation gives the share of each period during
 which attacks against railroads were carried out.

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