1914-15

1915-16

1916-17

1917-18

1918-19

1919-20

Ratio of deaths from small-pox.

Number of successful vaccina-
tions.

Ratio of deaths from small-pox.

Number of successful vaccina-
tions.

Ratio of deaths from small-pox

Number of successful vaccina-
tions.

Ratio of deaths from small-pox.

Number of successful vaccina-
tions.

Ratio of deaths from small-pox.

Number of successful vaccina-
tions.

Ratio of deaths from small-pox.

Number of successful vaccina-
tions.

10

11

12

13

14

15

16

17

18

19

20

21

.48

57,665

.71

68,438

.28

67,870

.15

68,529

.13

68,535

.85

68,573

.10

65,855

.68

75,641

.37

56,139

.18

62,246

.21

56,114

.62

66,449

.32

62,079

.45

65,016

.26

51,176

.10

51,858

.02

41,625

.24

42,394

.06

80,729

.15

79,608

.27

74,895

.16

77,721

.07

66,443

.10

66,882

.10

64,146

.14

68,255

.07

49,091

.11

51,755

.14

50,191

.13

53,458

.09

105,292

.24

104,624

.20

88,702

.09

85,898

.02

86,664

.10

87,182

.24

97,760

.41

95,237

.28

96,020

.07

93,206

.08

86,555

.10

88,770

.46

89,749

.42

87,999

.17

67,229

.10

68,361

.05

56,576

.24

59,814

.35

75,831

.38

74,532

.22

66,899

.22

68,166

.09

59,034

.23

56,741

.30

58,496

.38

51,206

.33

53,018

.64

49,490

.52

54,209

.96

50,349

.18

53,182

.37

57,558

.43

46,826

.14

56,728

.06

46,659

.30

44,691

.06

113,297

.69

89,925

.16

73,415

.81

62,177

.89

51,845

.91

55,008

.90

53,281

.90

38,609

.24

22,178

.03

25,800

.09

20,942

.86

22,139

...

7,680

.01

9,686

.15

9,226

.01

6,956

.06

6,751

1.11

5,739

.02

33,820

.30

37,595

.52

29,228

.26

34,639

.75

33,543

3.12

32,940

.02

27,561

.75

22,606

1.09

19,938

.24

23,345

.07

15,361

.68

13,835

.03

48,299

.49

46,709

.19

42,148

.07

39,761

.07

35,632

.24

35,026

.03

50,958

.12

52,111

.05

48,667

.03

47,094

.04

31,870

.90

40,559

.10

29,327

.17

31,808

.15

25,542

.06

26,893

.06

20,472

1.26

21,226

.43

73,369

.63

54,056

.23

49,379

.02

52,289

.05

37,807

.44

57,908

.45

25,909

.28

19,526

.12

17,429

.09

17,872

.10

15,542

1.24

19,595

.22

1,273,285

.42

1,230,745

.28

1,053,015

.19

1,070,784

.17

942,370

.53

989,278