Bank of Japan Head Office

Prime Lending Rates (Principal Banks) from 1966 to 1988

Releases

(Percent per annum)
Effective Dates Short-term Rates * Long-term Prime Lending Rates
1966   Jan. 1   8.4
Oct. 1   8.2
1970   Apr. 1   8.5
May 15 6.25 ↓
1971   Jan. 23 6.0 ↓
May 11 5.75 ↓
July 31 5.5 ↓
Sep. 1 ↓ 8.2
1972   Jan. 4 5.0 ↓
Apr. 1 ↓ 8.0
June 28 4.5 ↓
Aug. 1 ↓ 7.7
1973   Apr. 5 5.25 ↓
May 1 ↓ 8.0
June 2 5.75 ↓
July 5 6.25 ↓
Aug. 1 ↓ 8.3
Sep. 1 7.25 ↓
Oct. 1 ↓ 8.6
1974   Jan. 4 9.25 9.4
Oct. 1 ↓ 9.9
1975   Apr. 19 8.75 ↓
June 11 8.25 ↓
Aug. 1 ↓ 9.7
Aug. 16 7.75 ↓
Oct. 28 6.75 ↓
Nov. 5 ↓ 9.2
1977   Mar. 16 6.25 ↓
Apr. 22 5.25 ↓
Apr. 28 ↓ 8.4
June 27 ↓ 8.2
July 28 ↓ 7.9
Sep. 8 4.5 ↓
Sep. 21 ↓ 7.6
1978   Mar. 20 3.75 ↓
Mar. 27 ↓ 7.1
1979   Apr. 20 4.5 ↓
May 1 ↓ 7.7
July 27 5.5 ↓
Aug. 1 ↓ 8.2
Nov. 7 6.5 ↓
1980   Feb. 22 7.5 ↓
Mar. 1 ↓ 8.8
Mar. 24 9.25 ↓
Apr. 1 ↓ 9.5
Aug. 23 8.5 ↓
Nov. 10 7.5 ↓
Nov. 28 ↓ 8.8
1981   Mar. 23 6.75 ↓
Apr. 28 ↓ 8.5
Nov. 1 ↓ 8.9
Dec. 21 6.0 ↓
Dec. 28 ↓ 8.6
1982   Mar. 29 ↓ 8.4
Sep. 1 ↓ 8.9
Dec. 28 ↓ 8.6
1983   Jan. 28 ↓ 8.4
Oct. 28 ↓ 8.2
Nov. 11 5.5 ↓
1984   Mar. 28 ↓ 7.9
Oct. 29 ↓ 7.6
1985   Jan. 28 ↓ 7.4
Apr. 1 ↓ 7.7
May 28 ↓ 7.5
July 29 ↓ 7.2
Sep. 28 ↓ 7.0
Dec. 2 ↓ 7.5
Dec. 28 ↓ 7.2
1986   Feb. 24 5.0 ↓
Feb. 28 ↓ 6.9
Mar. 28 ↓ 6.4
Mar. 31 4.5 ↓
May 19 4.125 ↓
Nov. 25 3.75 ↓
Nov. 28 ↓ 6.2
1987   Jan. 28 ↓ 5.8
Feb. 28 ↓ 5.5
Mar. 16 3.375 ↓
Mar. 28 ↓ 5.2
May 28 ↓ 4.9
Aug. 1 ↓ 5.2
Oct. 1 ↓ 5.7
1988   Jan. 28 ↓ 5.5
Aug. 1 ↓ 5.7
* The rates for banks surveyed under the Temporary Interest Rates Adjustment Law.

Inquiries

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Tel : +81-3-3279-1111

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