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:
| Name | Position | Period | Appearances¹ | Goals¹ | Nationality² |
| --- | --- | --- | --- | --- | --- |
| Valdo | Midfielder | 1991 – 1995 | 153.0 | 16.0 | Brazil |
| Vampeta | Midfielder | 2000 – 2001 | 8.0 | 1.0 | Brazil |
| Franck Vandecasteele | Forward | 1984 – 1988, 1990 – 1992 | 1.0 | 0.0 | France |
| Gregory van der Wiel | Defender | 2012 | 29.0 | 1.0 | Netherlands |
| Richard Vanquelef | Forward | 1970 – 1974 | 1.0 | 1.0 | France |
| Jean-Luc Vasseur | Defender | 1986 – 1988, 1990 – 1992 | 22.0 | 0.0 | France |
| Pierre Vermeulen | Forward | 1985 – 1987 | 55.0 | 1.0 | Netherlands |
| Marco Verratti | Midfielder | 2012 | 39.0 | 0.0 | Italy |
Question:
at least how many times was Pierre Vermeulen at a game?
Answer:
55.0