% is Dec to Dec on unadjusted indexes %2 is year to adjusted
Adjusted Rise
Year Price D-D Adj%
1991 136.2 3.1 4.2* 1990 130.7 6.1 5.4 1989 124.0 4.6 4.8 1988 118.3 4.4 4.1 1987 113.6 4.4 3.6 1986 109.6 1.1 1.9 1985 107.6 3.8 3.6 1984 103.9 3.9 4.3 1983 99.6 3.8 3.2
***
THE PROJECT GUTENBERG PRICE INDEX FROM 1875 TO 1989
YEAR: 1989
1993 1.169856 [based on 1989 as 1.000000 base year] 1992 1.124864 [and based on 4.0000% inflation rate] 1991 1.081600 1990 1.040000
Prices will double from 1989 to 2007 at 4.0000%
Prices will double from 1989 to 2012 at 3.0000%
Average price rise for 20 year period 1970-1989 is about 6% [5.94%]
Average price rise for 30 year period 1960-1989 is about 5% [4.89%]
Average price rise for 40 year period 1950-1989 is about 4% [4.32%]
1991 3.1 4.2* 1990 6.1 5.4