Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Episode | Broadcast date | Run time | Viewers (in millions) | Archive |
| --- | --- | --- | --- | --- |
| " Episode One " | 30September1967 | 24:15 | 6.3 | Only stills and/or fragments exist |
| " Episode Two " | 7October1967 | 23:15 | 6.0 | 16mm t/r |
| " Episode Three " | 14October1967 | 23:55 | 7.1 | Only stills and/or fragments exist |
| " Episode Four " | 21October1967 | 24:11 | 7.1 | Only stills and/or fragments exist |
| " Episode Five " | 28October1967 | 23:51 | 7.2 | Only stills and/or fragments exist |
| " Episode Six " | 4November1967 | 23:31 | 7.4 | Only stills and/or fragments exist |
Question:
How many viewers in millions watched the episode 23:55 minutes long?
Answer:
7.1