51.1970年美国家庭外出就餐的平均次数依然保持遥遥领先，平均每月2.4次，同时，英国家庭的外出就餐次数也大幅攀升至1次，而日本家庭的外出就餐次数只有稍微的一点增长，达到0.4次。
In 1970 American families still took the lead in terms of the times of eating out at restaurants, averaging 2.4 times per month. Meanwhile, British families also saw a big increase in the frequency of eating out, rising to 1 time per month while Japanese families only showed a slight increase in this respect, averaging 0.4 time per month.
52.1980年美国和日本家庭外出就餐频率继续大幅攀升，分别达到每月3.2次和1次，而英国家庭在这方面则只增长了0.2次，维持在每月1.2次。
In 1980, there were substantial increases in the number of times of eating out for American and Japanese families, reaching 3.2 times and 1 time respectively. However, there was only a slight increase by 0.2 time for British families, standing at 1.2 times per month.
53.1990年对于美国家庭来讲是外出就餐增长最快的一年，从3.2次增长到了6.4次，同时，英国家庭追上了日本家庭，两者皆达到了1.4次。
1990 for American families was a year which witnessed the fastest growth in terms of eating out at restaurants and we see an increase from 3.2 times to 6.4 times. Besides, British families caught up with Japanese families, both hitting 1.4 times per month.
