#902 friedland gl insurer claims data

[kennethshsu]

Summary of Changes

Added another data friedland_gl_self_insurer.csv

Related GitHub Issue(s)

Closes #902

Additional Context for Reviewers

The data from the original ticket is actually not wrong. I think they are actually two separate datasets. The original dataset is named friedland_gl_insurer.csv used in the Freq/Sev chapter, but chapter 8 uses another data called friedland_gl_self_insurer.csv (with self in the filename). This PR adds the new dataset and does not modify the old dataset.

• I passed tests locally for both code (uv run pytest) and documentation changes (uv run jb build docs --builder=custom --custom-builder=doctest)

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Note

Low Risk
Additive sample data and manifest metadata only; no changes to core library logic or security-sensitive paths.

Overview
Adds the friedland_gl_self_insurer bundled sample so it can be loaded via load_sample / list_samples, separate from the existing friedland_gl_insurer dataset.

Registers the sample in SAMPLES in _manifest.py (Accident Year / Calendar Year, Reported Claims and Paid Claims, cumulative) and ships friedland_gl_self_insurer.csv with 1998–2008 accident years valued at calendar year 2008.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.92%. Comparing base (cbed23c) to head (d4a2e7d).

Additional details and impacted files

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  Coverage   86.92%   86.92%           
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  Files          87       87           
  Lines        4942     4942           
  Branches      625      625           
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  Hits         4296     4296           
  Misses        456      456           
  Partials      190      190           

Flag	Coverage Δ
unittests	86.92% <ø> (ø)

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