1963

1964

1965

1966

1967

1968

1969

1970

1971

1972

1973

1974

1975

1976

1977

1978

1979

Temp visas staying in US

26

24

34

38

49

55

62

50

46

34

43

48

55

30

52

35

32

%

3.4

2.8

3.5

3.9

4.9

4.6

4.9

3.7

3.0

2.3

2.9

3.4

3.8

2.3

4.0

2.6

2.3

Temp visas leaving US

92

132

157

159

165

191

155

178

213

217

218

244

220

205

206

217

225

%

11.9

15.6

16.3

16.4

16.3

16.0

12.2

13.0

13.9

14.9

14.8

17.5

15.3

15.6

15.9

16.0

16.2

Total temporary residents

144

201

245

246

248

282

280

273

305

305

315

356

343

302

326

318

334

%

18.6

23.8

25.4

25.3

24.6

23.6

22.1

20.0

19.9

21.0

21.4

25.5

23.8

22.9

25.1

23.4

24.1

Postdoctoral appointments

81

84

120

96

114

146

184

201

234

204

245

196

214

213

200

223

244

%

10.4

9.9

12.4

9.9

11.3

12.2

14.5

14.7

15.3

14.0

16.6

14.0

14.9

16.2

15.4

16.4

17.6

Time to degree

 

 

 

 

 

 

 

6.0

6.1

6.3

6.5

6.4

6.5

6.6

6.9

6.9

6.8

Median age at time of degree

 

 

 

 

 

 

 

29.9

30.4

30.7

31.1

31.0

31.0

31.0

31.0

31.1

31.0



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