3.36× price rise
Average US inflation: 6.25% a year over 20 years. Prices first doubled by 1980. Highest year: 1980 (13.5%). Lowest: 1986 (1.9%).
| 1970 | in 1990 | 1990 amount in 1970 money |
|---|---|---|
| $1 | $3.36 | $0.30 |
| $10 | $33.64 | $2.97 |
| $100 | $336.39 | $29.73 |
| $1,000 | $3,363.87 | $297.28 |
| $10,000 | $33,638.70 | $2,972.77 |
| $100,000 | $336,387.04 | $29,727.66 |
| Year | Value | Inflation |
|---|---|---|
| 1970 | $100.00 | |
| 1971 | $104.23 | 4.2% |
| 1972 | $107.64 | 3.3% |
| 1973 | $114.37 | 6.3% |
| 1974 | $126.97 | 11.0% |
| 1975 | $138.58 | 9.1% |
| 1976 | $146.58 | 5.8% |
| 1977 | $156.06 | 6.5% |
| 1978 | $167.97 | 7.6% |
| 1979 | $186.87 | 11.3% |
| 1980 | $212.10 | 13.5% |
| 1981 | $234.11 | 10.4% |
| 1982 | $248.53 | 6.2% |
| 1983 | $256.38 | 3.2% |
| 1984 | $267.58 | 4.4% |
| 1985 | $277.02 | 3.5% |
| 1986 | $282.41 | 1.9% |
| 1987 | $292.51 | 3.6% |
| 1988 | $304.51 | 4.1% |
| 1989 | $319.09 | 4.8% |
| 1990 | $336.39 | 5.4% |
1970–1989 · 1970–1991 · All years
$100 in 1970 had about the same buying power as $336.39 in 1990, based on US consumer price index data.
About 6.25% per year, compounding to a 236.4% total rise in prices over 20 years.
1980 saw the largest annual rise in the index (13.5%); the lowest was 1986 (1.9%).