This is an example.
4.60972937 -0.04260154
5.06349657 0.13064470
6.20083580 0.22152797
7.0538402 0.28969043
8.4482493 0.26412951
10.1652939 0.21868787
11.3792349 0.22436808
12.4127075 0.26128941
13.7688157 0.27833002
14.9444558 0.32661177
15.6059561 0.60778188
16.5900921 0.86907129
17.7546964 1.09911957
18.8043982 1.45697245
19.8540999 1.81482533
20.8655010 2.21527975
22.2378383 2.55325192
23.3641417 2.82590173
24.9662840 2.90826470
26.9183268 3.10991196
27.5687914 3.57284862
28.0387878 4.06702641
28.2627501 4.49588185
28.7983122 5.08662312
29.2300077 5.62340245
29.7655699 6.21414371
30.6731043 6.56063618
31.6462044 7.00369213
32.7614721 7.45810849
33.6417414 7.66543595
34.7407798 7.79892077
35.8287825 8.11417211
36.7090519 8.32149958
38.0924251 8.47770520
40.4164402 8.43510366
41.7342476 8.49474582
43.5551588 8.50326612
45.3377693 8.55438796
46.6555768 8.61403011
47.8695177 8.61971031
