"Chunked Word Counter"

private static void ThreadDoWorkSectioned(object threadStartParameter) {
	ThreadWorkBlock localWorkBlock = (ThreadWorkBlock) threadStartParameter;

	Dictionary<string, int> localWordCountDict = new Dictionary<string, int>();
	int countPerSection = localWorkBlock.Count / NUM_SECTIONS_PER_THREAD;
	for (int section = 0; section < NUM_SECTIONS_PER_THREAD; ++section) {
		int startingIndex = localWorkBlock.StartingIndex + countPerSection * section;
		int count = section < NUM_SECTIONS_PER_THREAD - 1 ? countPerSection : localWorkBlock.Count - countPerSection * (NUM_SECTIONS_PER_THREAD - 1);
		localWordCountDict.Clear();

		for (int i = startingIndex; i < startingIndex + count; ++i) {
			string thisWord = wordList[i].ToUpper().Replace("-", String.Empty).Replace("'", String.Empty).Trim();
			bool firstLocalOccurrenceOfWord = !localWordCountDict.ContainsKey(thisWord);
			if (firstLocalOccurrenceOfWord) localWordCountDict.Add(thisWord, 1);
			else localWordCountDict[thisWord] = localWordCountDict[thisWord] + 1;
		}
		lock (wordCountCalculatorSyncObj) {
			foreach (var kvp in localWordCountDict) {
				bool firstGlobalOccurrenceOfWord = !wordCountDict.ContainsKey(kvp.Key);
				if (firstGlobalOccurrenceOfWord) wordCountDict.Add(kvp.Key, kvp.Value);
				else wordCountDict[kvp.Key] += kvp.Value;
			}
		}
	}
}