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II. Death situation in the life table

  In the abridged life tables for 2004, the number of survivors at age 65 is 85,663 for males and 93,039 for females in a stationary population supported by 100,000 annual live births. These facts lead that the survival ratio until age 65 is 85.7% for males and 93.0% for females. In the same way, it follows that the survival ratio until age 80 is 55.2% for males and 76.8% for females.
  The number of stationary population from age 0 is 7,863,631 for males and 8,558,879 for females. The number of stationary population from age 65 is 1,560,146(19.8%) for males and 2,165,902(25.3%) for females. These facts lead that ratio of total person-years from age 65 to total person-years from age 0 is 19.8% for males and 25.3% for females.
  The median length of life, which means the age when exactly half of the cohort remain alive, is 81.57years for males and 88.34 years for females.

Table 3. Survival ratio until specified ages
(%)
Year Male Female
Age40 65 80 Age40 65 80
1947 68.0 39.8 9.5 70.9 49.1 17.3
1950-1952 81.8 55.1 16.6 83.2 62.8 26.1
1955 87.0 61.8 20.0 89.0 70.6 31.9
1960 89.7 64.8 20.1 92.2 75.2 33.8
1965 92.6 69.1 22.6 95.0 80.0 38.4
1970 93.7 72.1 26.1 96.1 82.6 43.0
1975 95.1 76.8 33.2 96.9 86.1 50.7
1980 96.1 79.4 37.8 97.6 88.5 57.0
1985 96.7 81.1 42.8 98.0 90.1 63.0
1990 97.1 82.6 46.9 98.3 91.3 67.8
1995 97.2 83.3 48.2 98.4 91.6 70.2
2000 97.5 84.7 52.5 98.6 92.6 74.5
2001 97.6 85.1 53.5 98.6 92.8 75.3
2002 97.7 85.4 54.2 98.6 92.9 75.9
2003 97.6 85.3 54.5 98.6 93.0 76.3
2004 97.7 85.7 55.2 98.7 93.0 76.8
Notes:1.Data up to 2000 is based on complete
life tables.
Notes:2.Before 1970, data of Okinawa prefecture
is not included.
   Table 4. Total person-years from age 65 ratio
(%)
Year Male Female
1947 c c
1950-1952 10.5 13.3
1955 11.5 14.7
1960 11.5 15.1
1965 12.1 16.0
1970 13.0 17.0
1975 14.7 18.5
1980 15.8 19.9
1985 16.8 21.2
1990 17.6 22.3
1995 18.0 23.2
2000 19.1 24.5
2001 19.4 24.8
2002 19.6 25.0
2003 19.6 25.1
2004 19.8 25.3
Notes:1.Data up to 2000 is based on
complete life tables.
Notes:2.Before 1970, data of Okinawa
prefecture is not included.


Table5 The median length of life
(years)
Year Male Female
1947 59.28 64.45
1950-1952 67.22 71.31
1955 69.79 74.19
1960 70.66 75.44
1965 72.00 77.04
1970 73.10 78.19
1975 75.31 80.17
1980 76.69 81.75
1985 78.06 83.38
1990 79.13 84.71
1995 79.49 85.73
2000 80.74 87.41
2001 81.08 87.72
2002 81.28 88.02
2003 81.35 88.09
2004 81.57 88.34
Notes:1.Data up to 2000 is based on
complete life tables.
Notes:2.Before 1970, data of Okinawa
prefecture is not included.


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