TABLE 16-6
the Number of Cases of Merlot

TABLE 16-6
The number of cases of merlot wine sold by a Paso Robles winery in an 8-year period follows.
$$\begin{array} { c c } \underline { \text { Year }} &\underline {\text { Cases of Wine }}\\ 1991 & 270 \\1992 & 356 \\1993 & 398 \\1994 & 456 \\1995 & 358 \\1996 & 500 \\1997 & 410 \\1998 & 376\end{array}$$
-Referring to Table 16-6, a centered 3-year moving average is to be constructed for the wine sales. The moving average for 1992 is _____.