problem is total up the value

i have a problem to sum up the value.
for example:
in my richtextbox1:
0.94
0.83
1.67
0.50
0.67
1.25
0.98

now i wan to total up the value.
if the value is less than 1 , then total is 5.
if the value is greater than 1, then total is 2.
below are my coding, but cannot work.
  int count = 0;
           
            double liftV = richTextBox24.Lines.Length;

            if (liftV <1.00)
            {
                count++;
            
               
            }
            textBox5.Text=count.ToString();

hope someone can help me..