Books

144,461,382

85.01%

1,382,678,443

Serials

7,077,774

4.17%

50,680,473

Visual materials

4,726,338

2.78%

30,717,289

Maps

2,665,939

1.57%

7,981,609

Mixed materials

957,294

0.56%

826,357

Sound recordings

5,260,150

3.10%

36,990,777

Scores

3,514,365

2.07%

15,122,676

Computer files

1,266,416

0.75%

3,853,946

Totals

169,929,646

100.00%

1,528,851,570