How to increase two floats for every frame the space button is pushed down?

Hello, everyone. The title pretty much explains it all. How would I increase two floats by a value of my choice every frame the space button is pushed down? Thanks for your help!

float value = 0;
float increaseValue = 5;

	void Update ()
	{
		if (Input.GetKey (KeyCode.Space)) {
			value += increaseValue * Time.deltaTime;//if you want it to increase with 5 each second
			value += increaseValue;//if you want it to increase with 5 every frame, which i would not recommend (about 60 times a second)
		}
	}