Changing the size of a GUI label

Is there a way to change the size of a GUI label. here is the code i used for the GUI label:

GUI.Label(Rect(10,10,200,30), "You survived " +totaltime + " Seconds");

How do i cahnge the font size of the words, "You Survived", the variable "totaltime", and the word "Seconds"

And help would be nice

for my own HUD I used this method as i had imported quite a few of my own fonts and was using lots of different fonts.

I imported my desired font and changed the size of that specific font in the inspector (for me I changed it from 16 to 40)

I then added a variable

MyFont

or whatever you want and choose the font you want

you then add the line

GUI.skin.font = MyFont;

before each label that you want to have a different font

var MyFont : Font;

function OnGUI () {
GUI.skin.font = MyFont;
GUI.Label(Rect(10,10,200,30), "You survived " +totaltime + " Seconds");
}