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34 15 7 10 1 5 7

15 7 10

25 1 1 1.1 1 1.2 1 1.3 2 2 3 3.1 25 3 3.2 25 1 2 3 4 3.3 4 3.3.1 4 3.3.2 6 3.3.3 7 3.4 8 8 8 9 11 13 14 14 16 17 1.1 17 1.2 17 1.3 18 1.4 18 19 2.1 19 2.2 20 22 3.1 22 3.2 23 3.3 24 3.4 25 26

4.1 26 4.2 26 28 5.1 25 28 28 5.2 29 29 5.3 31 31 32 5.4 33 33 34 34 1.1 34 1.2 35 25 2 36 25 36 7 36 ILO 38 1.3 38 40 2.1 40 2.1.1 40 2.1.2 40 41 2.1.3 41 2.1.4 41 42 87 3 42 4 42 50 43 43 OECD 44 EU 45 45 47 49 51 53 54 55 2003 56

2.2 57 2.2.1 57 57 58 58 2.2.2 59 59 14 5 15 60 60 61 2.3 62 2.3.1 62 62 15 63 2.3.2 64 34 141 64 12 18 65 16 15.6.9 65 21 15.6.16 65 2.4 66 2003 66 2.4.1 68 68 68 68 68 69 69 70 71 71 73 74 75 76 77 78 81 82 82 83

83 2002 14 84 14 85 86 86 88 89 21 89 2.4.2 89 89 90 2.4.3 90 90 90 91 91 92 92 2.4.4 93 98 98 1.1 98 98 1.2 99 99 1.3 100 100 1.4 102 102 2.1 102 103 104 2.2 105 107 109 3.1 109 151 53 110 3.2 113 3.3 115 120

25 13 14 18 24 29 31 33 39 16 17 32 40 15 25 26 1 27 28 1

20 82 25 2 242 2

25 1 1 2 243 50 11 10 26 10 11 1268 2 1 2 1 2 1 1 243-244 3

1945 20 10 29 12 26 GHQ GHQ ATIS 244 4

5 421 25 25 244 423

424 6

7 3.3.2 25 25 319-320

23 9 29 2 10 1235 1 2 Y 25 1 25 25 1 60 11 21 39 7 1512 23 25 27 X X 8

1 1 47 8 1 1 35 10 19 11 10 2921 1,500 600 600 900 25 25 1 25 1 2 1 9

25 2 1 2 3 8 2 3 25 1 25 10

3 8 2 8 2 3 42 5 24 21 5 1043 2 25 1 11

12 8 2

57 7 7 36 7 1235 25 1 2 1 14

25 25 25 14 13 13 15

25 3, 2002 244 13 6 12 No.1244, 16

2 25 (1), No.250 35 10 19 11 10 2921 38 11 4 14 11 1963 42 5 24 21 5 1043 1980 1950 25 21 1995 7 17

(1), No.250 25 1 73 1022 72 25 1 50 11 10 26 10 11 1268 (1), No.250 18

1 20

22 1990 2000 12 65 2001 13 1997 9 9 8 2000 12 1

2002 14 1997 9 2000 12 23

117 17 3 1 15 4 1 40 41 6 7 1950 25 25 25 1 24

2 2 1 2 25

3 28

1 4 19 19 5 20 2 4 1601 5 1880 34

5 2 25 2 5 3 35

25 2 25 7 36

38 1 2 4 2 5

3 39

14 36.1% 47.1% 83 50 50 97 2 40

100 50 6 1 6 98 4 39 6 2 1 29 103 4 100 50 16 2004 41

50 5 87 3 4 11 1999 12 2000 3 16 2004 42

20 50 55 50 2000 10 2025 51 2025 50 2 54-55 50 80 50 2001 8 8 45 18.9 12.7 5.4 0.5 50 18.3 11.7 7.5 7.5 55 22.2 14.2 9.1 8.2 60 24.0 15.0 10.4 4.9 2 27.4 17.9 11.3 7 23.5 14.6 13.3 9.0 8 23.2 14.2 13.2 8.4 9 23.4 14.2 13.5 7.4 10 22.9 13.5 14.0 (*) 16.9 10.0 11 22.5 13.1 14.1 11.7 12 23.2 13.9 14.0 9.5 13 23.1 13.5 14.7 8.9 14 21.7 12.6 15.0 10.5 45 60 15 5.1 2.3 5.0 4.4 45 15 33 2.0 0.7 9.8 10.5 43

OECD ( ) ( ) 12 National Accounts (OECD) Revenue Statistics(OECD) 44

EU United Nations Population Division, World Population Prospects: The 2002 Revision Population Database. 81 18 19 1913 1946 1960 1962 2 1999 45

Lansting 18 2 Kommun 290 2000 76.5 54.4 22.1 6 85 15 1999 46

14 EU 6 6 14 275 47

73.9 4.9 69.0 7 50 50 67 50 50 25 75 75 3 1 3 2 1999 75 1 2 7 OECD 2000 48

1984 49

50 3 ASSEDIC RMI 1999 4 2 11 4

75 40 60 1999 20 1 20 1 sozialer Bundesstaat 12 11 52

1601 5 4 1 53

7 3 4 2 4 4 3 54

56 21 50

( ) 90 50 57

12 145726 18.7 104474 13.4 32521 4.2 391729 50.1 26649 3.4 10185 1.3 7116 0.9 19298 2.5 21861 2.8 5630 0.7 14197 1.8 1881 0.2 12 781272 100.0 91% 12 11 3 3 2 58

1999 96 9,265 8.64 54 5,285 56.3 24 6610 25.4 17 7370 18.3 14 106 1. 2. 12 90.2 3. 12 78.1 4. 59

2002 2005 2010 2025 14 17 22 37 82 22 1/2 58 16 24 6 1/2 86 23 103 25 182 32 1/2 (99) (23) (122) (25) (204) (31) 59 15 1/2 70 17 124 22 (69) (16) (85) (17 1/2) (142) (21 1/2) 27 7 33 8 58 10 1/2 (29) (7) (37) (7 1/2) (62) (9 1/2) 2002 2005 2010 2025 14 17 22 37 82 22 1/2 58 16 24 6 1/2 87 23 104 25 180 32 1/2 (99) (23) (123) (25) (203) (31) 57 15 67 16 116 21 (67) (15 1/2) (82) (16 1/2) (134) (20 1/2) 30 8 37 9 64 11 1/2 (32) (7 1/2) (41) (8 1/2) (69) (10 1/2) 12 10 2002 82 22.5 2025 182 32.5 20 2025 52.5 14 8.6% 60 14 60

2002 2005 14 17 2010 22 2025 37 82 22 1/2 91 24 110 26 1/2 176 31 1/2 (100) (23) (127) (26) (207) (31 1/2) 44 12 48 13 57 14 84 15 (53) (12) (67) (13 1/2) (99) (15) 26 7 28 7 1/2 35 8 1/2 60 11 (32) (7 1/2) (40) (8) (71) (11) 12 3 1/2 14 3 1/2 17 4 32 5 1/2 (16) (3 1/2) (21) (4 1/2) (36) (5 1/2) 5 1 6 1 1/2 8 2 20 3 1/2 (7) (1 1/2) (10) (2) (21) (3) 376 414 557 365 (433) (490) (660) 2002 2005 2010 2025 14 17 22 37 91 24 110 26 1/2 176 31 1/2 82 22 1/2 (101) (23) (128) (26) (207) (31 1/2) 48 13 58 14 84 15 44 12 26 7 12 3 1/2 5 1 (53) (12) (67) (13 1/2) (100) (15) 28 7 1/2 35 8 1/2 60 11 (32) (7 1/2) (40) (8) (71) (11) 14 3 1/2 17 4 32 5 1/2 (16) (3 1/2) (21) (4 1/2) (36) (5 1/2) 6 1 1/2 8 2 20 3 1/2 (7) (1 1/2) (10) (2) (21) (3) 376 414 557 365 (433) (490) (660) 12 10 61

23.2 63

16 15.6.9 16 2.7 21 15.6.16 12 2 1 16 2.7 11 65

66 ( 13 26 2001 ) 16

67 12 2001

68 401K 5 193 2000 251

130 (2), No.251 17 1942 19 1944 22 1947 25 1950 29 1954 34 1959 36 1961 37 1962 40 1965 48 1973 58 1983 3 69

60 1985 1989 6 1994 8 1996 12 2000 20 3 65 65 13 2001 3 1 2 1997 70

1 2 1 15 1 32 1 15 2 32 2 15 3 32 3 15 4 5 206 71

25 65 60 * 70 * * 60 65 6 1994 1 65 13 2001 25 2013 12 2000 2 2013 37 2025 65 3 1 1 2 1.25 2 25 300 25 1 2 1.25 2 3 72

3 1 4 3 25 300 25 87 3 81 4 3 2 73

3 2 116 74

12(2000) - 17.35 33.1 22.9 6.2 28.1 5.0 177.2 177.0 6.1 13(2001) - 17.35 33.9 23.4 6.2 29.8 4.1 181.3 178.4 5.9 14(2002) - 17.35 35.1 24.4 6.3 31.5 3.6 184.9 179.3 5.8 15(2003) 13.58 (17.35) 35.7 24.7 6.4 33.4 2.3 187.2 178.9 5.5 16(2004) 15.50 (19.85) 38.2 26.7 6.6 35.2 3.0 190.2 173.8 5.3 17(2005) 15.50 (19.85) 41.6 29.5 7.1 37.1 4.5 194.8 175.4 5.1 22(2010) 17.42 (22.35) 50.8 36.4 8.1 47.7 3.1 209.2 168.2 4.3 27(2015) 19.35 (24.85) 60.7 44.7 8.4 57.9 2.7 216.3 155.2 3.7 32(2020) 21.27 (27.35) 71.9 54.4 9.0 65.0 6.9 234.2 149.9 3.5 37(2025) 21.6 (27.8) 80.6 60.9 10.6 71.2 9.5 275.1 157.2 3.7 42(2030) 21.6 (27.8) 88.7 66.1 12.6 78.5 10.2 327.1 165.2 4.0 52(2040) 21.6 (27.8) 103.6 75.2 15.5 101.7 1.9 396.9 156.6 3.9 62(2050) 21.6 (27.8) 118.6 87.7 15.1 121.8-3.2 383.7 118.2 3.2 72(2060) 21.6 (27.8) 137.8 105.3 14.9 134.9 3.0 382.3 92.0 2.8 12(2000) - 17.35 33.1 22.9 6.2 28.1 5.0 177.2 177.0 6.1 13(2001) - 17.35 33.9 23.4 6.2 29.8 4.1 181.3 178.4 5.9 14(2002) - 17.35 35.1 24.4 6.3 31.5 3.6 184.9 179.3 5.8 15(2003) 13.58 17.35 35.7 24.7 6.4 33.4 2.3 187.2 178.9 5.5 16(2004) 14.58 18.65 38.5 26.0 6.6 35.2 3.2 190.5 174.1 5.3 17(2005) 14.58 18.65 42.0 27.7 7.1 37.1 4.9 195.4 175.9 5.1 22(2010) 16.35 20.95 51.4 34.2 8.3 47.7 3.6 212.8 171.0 4.4 27(2015) 18.12 23.25 61.5 41.9 8.7 57.9 3.6 224.0 160.6 3.8 32(2020) 19.8 25.4 72.5 50.6 9.5 65.0 7.5 246.4 157.7 3.7 37(2025) 19.8 25.4 80.3 55.7 11.2 71.2 9.2 289.1 165.2 3.9 42(2030) 19.8 25.4 88.3 60.5 13.1 78.5 9.9 339.4 171.4 4.2 52(2040) 19.8 25.4 104.0 68.8 16.0 101.7 2.3 408.7 161.2 4.0 62(2050) 19.8 25.4 119.8 80.3 15.9 121.8-2.0 404.4 124.6 3.3 72(2060) 19.8 25.4 138.9 96.4 16.2 134.9 4.0 414.5 99.8 3.0 1. 16 2004 10 19.85 18.65 2.5 2.3 1/3 1/2 2. 2.5 1.5 4.0 2.5 36 2024 2.3 ) 3. 75

5 1 1999 218 8 2 90 76

2001 3 2001 4 2 42 1999 144 2001 4 77

)) 830 ( 10 ) 400 ( 5 ) ( 67 11,300 3,825 ( ( 65 ) ( ) ( 15 620 ( 3 ) ( 1 ) 1 4 1999 2000 1999 78

79 2 3,500 24 1998 4 5 8

80 6.4 6.4 8.85 8.85 3.15 3.15 6.8 12.6 6.55 8.20 1.67 2.17 3.23 5.4 2 9 4.6 6.6 8.6 10.4 8.8 7.0 10.21 1.7 1.38 5.84 2.2 4.25 4.25 8.675 8.675 0.7 1.05 2003 48

20 90 1991 4 1998 1999 8 2 18.5 61 70 2003 3 8 81

82 1990 14 111-112 21 14 2.7

8 3 1 15 14 112-113 3 13,700 83

6 3,000 14 113 2002 14 1997 9 1 2002 2001 11 29 14 113-114 2002 14 2001 13 9 25 2001 13 11 29 2001 13 12 24 2002 2002 14 3 1 2002 14 3 8 84

14 2002 3 1 154 100 7 30 8 2 Ⅰ 各制度世代を通じた給付と負担の見直し ( 下記 ) Ⅱ 高齢者への施策の重点化 Ⅲ 急速に増大する老人医療費の伸びの適正化 Ⅳ 国民健康保険の財政基盤の強化 3 3 15 2003 4 85

2000 12 4 3 14 236 86

87 1/2

2002 14 3 298 2 164 67 88

3 5 14 236-237 40 1/6 2000 12 2002 14 17 65 2000 13 4 9 1 10 2001 13 9 2000 98.6 2001 10 98.9 88 14 238-239 21 21 5 2000 12 2004 16 5 21 14 240-241 89

1950 1 2 3 4 8 14 362 5 p.11 90

19 means test 5 10 7 1874 4 1929 21 1946 25 22 1947 1 25 3 2 4 7 8 9 10 5 91

1965 S.40 644 1,599 16.3 1970 S.45 658 1,344 13.0 1975 S.50 708 1,349 12.1 1980 S.55 747 1,427 12.2 1984 S.59 790 1,469 12.2 1990 H.2 624 1,015 8.2 1993 H.5 586 883 7.1 1994 H.6 595 885 7.1 1995 H.7 602 882 7.0 1996 H.8 613 887 7.1 1997 H.9 631 906 7.2 1998 H.10 663 947 7.5 1999 H.11 704 1,004 7.9 2000 H.12 751 1,072 8.4 4 8 12 107 2,241 75 1,303 8.4 1 1000 1 14 366 19 3 4 3 2 1 75 92

15 64 1995 7 15 64 65 1965 40 70 1 2050 62 50 14 98

15 49 1950 25 3.65 1950 10 2 2 1975 2001 13 1.33 1975 14 5 99

1965 14 13 15 19 20 59 14 13 100

40 15 34 30 14 14 20 64 65 30 2020 32 50 2050 62 70 14 14-15 14 16 101

10 25 14 16-17 1999 11 12 17 5 12 19 6 102

12 16 5 6 2001 13 7 2002 14 5 2004 16 10 15 14 207-208 11 12 19 I 6 12 4 6 12 6 II (1) 0 2 (2) (3) (4) (1) 40 25 103

(2) (3) (1) (2) (1) (2) 24 (3) (4) (1) (2) 14 5 (3) (4) (5) 7 (1) (2) 8 (1) (2) (3) 13 7 6 13 14 16 I 1 1 104

105 2 5 3 4 2 3 13 1.33 1 5 9 1 2

5 4 106

107

108

151 8 156 15 6 11 12 156 15.5.23. 109

110 151 53

111

112

113

114

2002 1995 2001 7 1999 4 2001 1244 2003 5 1 15 250 2001 7 251 2001 8 252 2001 9 253 2001 10 5 2002 1 21 2001 2 2001 1999 Vol.41 No.3 2003 3 14 2002 2002 03 2002 2003 World Population Prospects: The 2002 Revision Population Database UNITED NATIONS POPULATION DIVISION http://www.mhlw.go.jp/ http://www.mhlw.go.jp/topics/nenkin/zaisei/index.html http://www.ipss.go.jp/ 12 http://www.ipss.go.jp/japanese/kyuhuhi-h12/kyuuhu_h12.html http://www.mof.go.jp/siryou.htm http://www8.cao.go.jp/kourei/ 120