■ When households were surveyed about whether family members ate meals together, 33% of households reported family members ate breakfast and supper together at least once during a given 3 weekdays. The percentage of family members that did not eat breakfast together even once in the 3 days was 46.2%, and for supper 28.2%.

(厚生省『国民栄養の現状』1994年度版)

■Do you eat breakfast? (high school students)

(「モノグラフ高校VOL.48」チャイルド・リサーチ・ネット、ベネッセコーポレーション1996)
http://www.crn.or.jp/LIBRARY/SEARCH/sassi3.html

■The differences in foods from one generation to another

(「家計簿からみたファミリーライフ」総務省統計局統計センター1999）
http://www.stat.go.jp/data/kakei/family/index.htm

■About Year's End Noodles (toshikoshi soba) (housewives in Tokyo metropolitan area)
At the end of 1997, 85.7% of households surveyed ate toshikoshi soba. When broken down by age group, toshikoshi soba was eaten by 90.0% of people in their 20s and 87.5% of those in their 30s, showing that it was eaten by a high percent of young people as well as older people.
The most popular hour soba was eaten was 7:00 p.m. (27% of households). The second most popular time was 11:00 p.m., which is the customary time one is supposed to eat toshikoshi soba. Twenty percent of families said that they ate something other than toshikoshi soba, such as sushi, on December 31.

(リビング生活研究所1998)

■Home-made traditional celebration foods (housewives in the Tokyo metropolitan area)
Futomaki sushi for Setsubun 56.9%, boiled sardines for Setsubun 13.7%. Chirashi zushi for Girl's Day 83.0%, Ushiojiru soup using fish bones for Girl's Day 30.6%. Chirashi zushi for Boy's Day 29.5%.
63.9% of families celebrated Christmas, New Year's, birthdays and various family anniversaries. Of that 63.9%, 80% celebrated wedding anniversaries. The most popular food for the celebration was temaki zushi.

(リビング生活研究所1999)