Table:
text: Tai Wai
Public housing
Public housing
Name_ Type_ Inaug_ No_Blocks No_Units
Carado Garden PSPS 1990 6 1988
Chun Shek Estate Public 1984 4 2166
Fung Shing Court HOS 1985 3 2448
Grandway Garden PSPS 1989 3 864
Hin Keng Estate TPS 1986 8 1004
Hin Yiu Estate Public 2005 1 799
Holford Garden PSPS 1985 3 800
Ka Keng Court HOS 2002 2 640
Ka Tin Court HOS 1988 6 1680
King Tin Court HOS 1983 6 1424
Lung Hang Estate Public 1983 6 4376
May Shing Court HOS 1982 3 2192
Mei Chung Court HOS 1996 6 1940
Mei Lam Estate Public 1981 4 4156

Question: What is the average number of No Units for Tai Wai property if the name is Fung Shing Court and the No Blocks is less than 3?