Between 1980 and 1999,constant Dollar Spending on Non-Residential Construction in the United

Short Answer

Between 1980 and 1999,constant dollar spending on non-residential construction in the United $\begin{array} { l l l l l l l l l l l } \text { Year } & 1980 & 1981 & 1982 & 1983 & 1984 & 1985 & 1986 & 1987 & 1988 & 1989 \\\text { Spending } & 27.6 & 30.8 & 37.8 & 40.0 & 36.9 & 36.0 & 38.4 & 35.7 & 34.7 & 35.3 \\\\\text { Year } & 1990 & 1991 & 1992 & 1993 & 1994 & 1995 & 1996 & 1997 & 1998 & 1999 \\\text { Spending } & 37.5 & 33.3 & 28.0 & 27.6 & 28.6 & 32.2 & 36.1 & 35.4 & 39.4 & 41.9\end{array}$
Find the quartiles of these data.