Intelligence service

1953 • 205 Readers • 144 pages • 3.6

2010 • 193 Readers • 320 pages • 3.9

2006 • 98 Readers • 578 pages • 4.5

1994 • 61 Readers • 1,012 pages • 3.9

1977 • 51 Readers • 589 pages • 3.8

1983 • 29 Readers • 532 pages • 4.2

1996 • 12 Readers • 416 pages • 4

2004 • 4 Readers • 254 pages • 5

2012 • 3 Readers • 437 pages

2010 • 2 Readers • 352 pages

2009 • 2 Readers • 1,032 pages

1940 • 1 Reader • 234 pages • 3

1999 • 1 Reader • 288 pages

1996 • 1 Reader • 421 pages

2013 • 1 Reader • 256 pages

2001 • 1 Reader • 576 pages

2010 • 1 Reader • 476 pages • 5

2011 • 1 Reader • 272 pages

1988 • 204 pages