+set label 1 "1" at 2, 350, 0 left norotate back nopoint offset character 0, 0, 0
+set label 2 "2" at 3.7, 200, 0 left norotate back nopoint offset character 0, 0, 0
+set label 3 "3" at 4.8, 100, 0 left norotate back nopoint offset character 0, 0, 0
+set label 4 "4" at 5.66, 50, 0 left norotate back nopoint offset character 0, 0, 0