Year


Number of Corporations

(1)
Number of Blue
Return Corporations
(2)
Blue Return
Diffusion Ratio
(2)  /  (1)
1950
1955
1960
1965
1970
1975
1980
1985
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002



















287,760
489,593
634,363
840,560
1,111,026
1,481,999
1,783,921
2,030,185
2,518,444
2,602,063
2,665,429
2,708,619
2,750,834
2,700,088
2,737,763
2,793,320
2,820,214
2,854,913
2,884,820
2,907,659
2,896,494
144,674
347,289
458,171
652,597
919,368
1,304,537
1,612,117
1,834,226
2,241,800
2,371,408
2,442,103
2,493,459
2,527,959
2,500,626
2,537,594
2,581,561
2,602,606
2,618,100
2,613,621
2,611,311
2,602,258
47.8
67.9
69.7
75.2
82.7
88.0
90.4
90.3
89.0
91.1
91.6
92.1
91.9
92.6
92.7
92.4
92.3
91.7
90.6
89.8
89.8

Notes:

  1.    The figures in column (1) include non-active corporations but exclude corporations in liquidation.
  2.    The figures in column (2) and the diffusion ratio up to 1965 include corporations in liquidation, but excludes them from 1970 onwards.
  3.    All the figures are as of June 30 of the following year.

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