Genre
Statistics
Periodicals
2,841
Census data
332
Vital statistics
266
Databases
226
Serial publications
128
Handbooks and manuals
123
Bibliographies
89
Technical reports
65
Academic theses
57
Maps
50
Longitudinal studies
45
Statistics, Medical
44
Conference papers and proceedings
43
Tables (Data)
37
Directories
28
Reference works
28
Dictionaries
23
Census, 2000
22
Census, 1990
19
Census, 1980
17
Catalogs
15
Graphs
12
Medical statistics
12
Demographic surveys
11
Annual reports
10
Atlases
10
Congresses
10
Electronic government information
10
Case studies
8
Census, 1970
8
Legislative hearings
7
Blank forms
6
Census
6
Observations
6
Trivia and miscellanea
6
Legislative materials
5
Registers (Lists)
5
Surveys
5
Video recordings
5
Charts, diagrams, etc
4
Examinations
4
Abstracts
3
Census, 1960
3
Census, 2010
3
Cross-cultural studies
3
Electronic journals
3
Guidebooks
3
Indexes
3
Problems and exercises
3
more ...