 Complete the following phrase:  Some of the trail statistics for the early years were recorded by the U.S. Army at Fort Laramie, Wyoming, from about 1849 to 1855. None of these original statistical records have been found, as the army lost them or destroyed them. Some diary references to these records and some partial written copies of the Army records as recorded in several diaries have survived. Emigration to California spiked considerably due to the 