shrink this down?

how can i make this smaller?

function openParachute(){
	var myNum = Random.Range(1,10);
	Debug.Log(myNum);
	if(myNum == 1){
	rigidbody2D.drag = 5;
	}
	else if(myNum == 10){
	yield WaitForSeconds(3);
	rigidbody2D.drag=5;
	}
	else if(myNum == 9){
	yield WaitForSeconds(2.2);
	rigidbody2D.drag = 5;
	}
	else if(myNum == 8){
	yield WaitForSeconds(2);
	rigidbody2D.drag= 5;
	}
	else if(myNum == 7){
	yield WaitForSeconds(1.8);
	rigidbody.drag = 5;
	}
	else if(myNum == 6){
	yield WaitForSeconds(1.5);
	rigidbody2D.drag = 5;
	}
	else if(myNum ==5){
	yield WaitForSeconds(1.2);
	rigidbody2D.drag = 5;
	}
	else if(myNum == 4){
	yield WaitForSeconds(.9);
	rigidbody2D.drag = 5;
	
	}
	else if(myNum ==3){
	yield WaitForSeconds(.6);
	rigidbody2D.drag = 5;
	
	}
	else if(myNum == 2){
	yield WaitForSeconds(.3);
	rigidbody2D.drag =5;
	}
//	
}

function openParachute(){
var myNum = Random.Range(1,10);
Debug.Log(myNum);
yield WaitForSeconds(.3*(myNum-1));
rigidbody2D.drag =5;
}

Why don’t you do a random.range for a float value and then use that number for your yield time then add the rigidbody drag. You could reduce your code to about three lines.