--- a/data.sty	Sun Oct 11 09:10:08 2020 +0100
+++ b/data.sty	Tue Oct 13 14:29:10 2020 +0100
@@ -353,7 +353,74 @@
 6500001 39.90294
 7000001 53.50961
 \end{filecontents}
- 
+
+% example a?{n} a{n}
+\begin{filecontents}{nfabreadth.data}
+1 0.00744
+2 0.02007
+3 0.07366
+4 0.13740
+5 0.21123
+6 0.42507
+7 0.70248
+8 1.54966
+9 2.88386
+10 5.01238
+11 9.87160
+12 19.25107
+13 38.60304
+\end{filecontents}
+
+% example (a*)* b
+\begin{filecontents}{nfabreadth2.data}
+1 0.01049
+6 0.05657
+11 0.08678
+16 0.13492
+21 0.25846
+26 0.28099
+31 0.35256
+36 0.35518
+41 0.36102
+46 0.42248
+51 0.54021
+56 0.64374
+61 0.61032
+66 0.65779
+71 0.79430
+76 0.79791
+81 0.79772
+86 0.85896
+91 1.00160
+96 1.11727
+\end{filecontents}
+
+% example a?{n} a{n}
+\begin{filecontents}{nfadepth.data}
+1 0.00047
+2 0.00485
+3 0.02597
+4 0.02026
+5 0.88002
+6 1.85384
+7 24.01612
+8 15.13296
+9 479.93808
+\end{filecontents}
+
+% example (a*)* b
+\begin{filecontents}{nfadepth2.data}
+1 0.00905
+2 0.04748
+3 0.17583
+4 1.00126
+5 3.19777
+6 13.37317
+7 55.52482
+\end{filecontents}
+
+
+
 \begin{filecontents}{nfa.data}
 0  0.00099
 5  0.01304