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:
| Wind farm | Installed capacity (MW) | Turbine Manufacturer | County | Date in Service |
| --- | --- | --- | --- | --- |
| Glacier Wind Farm I and II (NaturEner) | 210 | Acciona 1.5MW | Glacier/Toole | 2008-2009 |
| Rim Rock Wind Farm (NaturEner) | 189 | Acciona 1.5MW | Glacier/Toole | 2012 |
| Judith Gap Energy Center (Invenergy) | 135 | GE 1.5MW | Wheatland | 2005 |
| Musselshell Wind Project 1 and II | 20 | GW 1.5-87 1.5MW | Musselshell | 2012 |
| Gordon Butte Wind | 9.6 | GE 1.6MW | Meagher | 2012 |
Question:
How many turbine manufacturers installed a capacity of 189 MW?
Answer:
1.0