Books

151,984,994

84.08%

1,406,436,074

Serials

7,455,234

4.16%

52,535,327

Visual materials

4,819,794

2.69%

31,180,339

Maps

2,889,344

1.61%

8,337,427

Mixed materials

968,150

0.54%

834,792

Sound recordings

5,351,666

2.99%

37,730,116

Scores

4,425,015

2.47%

16,262,044

Computer files

1,334,114

0.74%

3,964,701

Totals

179,228,311

100.00%

1,557,280,820