diff --git a/tools/plot-timing.sh b/tools/plot-timing.sh
index 4509d25..c7786b4 100755
--- a/tools/plot-timing.sh
+++ b/tools/plot-timing.sh
@@ -27,20 +27,24 @@ BEGIN	{							\
 		count[foo] = 0;					\
 		}						\
 	}							\
-								\
+
+# for every line						\
 	{							\
 	accu[$2] += $3;						\
 	count[$2]++;						\
 	if (mini[$2] > $3)	mini[$2] = $3;			\
-	if (maxi[$2] < $3)	maxi[$2] = $3;			\
+	if (maxi[$2] < $3)	maxi[$2] = $3;
+	last[$2] = $3					\
 	}							\
 								\
 END	{							\
 	for (foo=0; foo<nbframes; foo++) {			\
 		if (count[foo] > 0) {				\
 			mean = accu[foo] / count[foo];		\
-			printf "%4d %4f %4d %4d\n", foo, mean, 	\
-				mini[foo], maxi[foo];		\
+			printf "%4d %4f %4d %4d %4d\n",
+				foo, mean,
+				mini[foo], maxi[foo],
+				last[foo];
 			}					\
 		}						\
 	}							\
@@ -57,9 +61,14 @@ gnuplot	<< __EOC__
 	set title "Séquence '${sequence}'"
 	set xlabel "numéro de la trame"
 	set ylabel "temps en secondes"
-	plot "/dev/shm/plot-timing.tmp" u 1:4 w l lc "#ff0000" t "maximum",	\
-	     "/dev/shm/plot-timing.tmp" u 1:3 w l lc "#0000ff" t "minimum",	\
-	     "/dev/shm/plot-timing.tmp" u 1:2 w l lc "#000000" t "moyenne",
+	plot "/dev/shm/plot-timing.tmp" u 1:4 w l 		\
+				lc "#ff0000" t "maximum",	\
+	     "/dev/shm/plot-timing.tmp" u 1:3 w l		\
+				lc "#0000ff" t "minimum",	\
+	     "/dev/shm/plot-timing.tmp" u 1:2 w l		\
+				lc "#00ff00" t "moyenne",	\
+	     "/dev/shm/plot-timing.tmp" u 1:5 w l		\
+				lc "#000000" t "last"
 __EOC__
 
 convert -negate -level -33% $IMAGE WS/negatif.png