[12 years old or older] (12 years old or older), [less than 12 years old 6 years old or older] (less than 12 years old 6 years old or older), [under 6 years old] (under 6 years old)

The enforcement date Bathing rate (Japanese yen)
[12 years old or older] [less than 12 years old 6 years old or older] [under 6 years old] Shampoo
1948 (1948) March 5 6 4 2 6
August 1, 1948 10 8 5 10
October 1, 1951 12 10 6 10
February 7, 1953 15 12 6 10
November 1, 1957 16 12 6 10
July 1, 1960 17 13 7 10
January 2, 1962 19 15 8 10
September 1, 1963 23 15 8 10
June 7, 1965 28 15 8 5
December 18, 1967 32 15 8 5
March 31, 1969 35 15 10 5
May 1, 1970 38 20 10
May 23, 1971 40 20 10
May 21, 1972 48 20 10
June 11, 1973 55 20 10
May 7, 1974 75 30 15
May 7, 1975 100 50 20
May 7, 1976 120 60 25
May 7, 1977 140 60 25
May 7, 1978 155 70 30
May 7, 1979 170 80 30
December 21, 1979 180 80 30
May 21, 1980 195 90 40
May 7, 1981 220 90 40
May 7, 1982 230 110 60
May 7, 1983 240 120 60
May 14, 1984 250 120 60
May 7, 1985 260 120 60
May 12, 1987 270 130 60
May 16, 1988 280 140 70
May 10, 1989 295 145 70
May 14, 1990 310 150 70
May 20, 1991 320 150 70
May 18, 1992 330 150 70
May 14, 1993 340 160 70
May 18, 1994 350 170 70
May 18, 1995 360 170 70
May 18, 1996 370 170 70
June 20, 1997 385 170 70
May 21, 2000 400 180 80
June 1, 2006 430 180 80
June 15, 2008 450 180 80
July 1, 2014 460 180 80