It is 0.3 or less minute.

The number of users of the Tokaido Shinkansen as per the data in March, 2007, is 398,000 persons per day. This is the total number of users per day.
In 2007, there were 145 million users of Tokaido Shinkansen in one year.
The number of the trains per day was about 300. The Shinkansen is in operation from 6 o'clock in the morning to 11 o'clock at night. The freight trains do not run at all.
People from most foreign countries are surprised at this. However, there is some more surprising data. It is the average delay of the Shinkansen.
The average delay is 0.3 of a minute per train. There are only three homes of the Shinkansen at the terminal Tokyo Station. There are six tracks. The 300 Tokaido Shinkansen trains are correctly operated with equipment of the tracks like this every day. Furthermore, although this is a very important thing, statistics of delays of a Japanese train are very strict. All delays of 1 minute or more are included in the statistics. In foreign statistics, only the delays of 15 minutes or more are included. Japan is a country with many typhoon, snow and earthquakes which are all included in statistics. However, it is still 0.3 or less of a minute.