To report an error in SIPRI Yearbook 2013, write to the SIPRI Editorial and Publications Department.

Chapter 3, section VI. 'The reporting of military expenditure data to the United Nations'

Page 169, 3nd paragraph

For 'By 2010 it had fallen to 60 states' read 'By 2009 it had fallen to 58 states'

Page 170, table 3.8

For '68' under Total no. of reports for 2011 read '67'

Chapter 4, section III. 'The SIPRI Top 100 arms-producing and military services companies, 2011'

Page 227, 2nd paragraph

For 'more than doubled from $280 billion to $660 billion' read 'more than doubled from $280 million to $660 million'

Chapter 10, section I. 'Arms trade treaty negotiations'

Page 423, 2nd paragraph

For 'seven co-sponsors—Australia, Costa Rica, Finland, Japan, Kenya and the United Kingdom' read 'seven co-sponsors—Argentina, Australia, Costa Rica, Finland, Japan, Kenya and the United Kingdom'