Up to the time of the San Francisco fire, April 18, 1906, San Francisco, of the cities of the State, profited most by this development. San Francisco bank clearances, for example, increased from $1,029,582,594.78 for the year ending December 31, 1900, to $1,834,549,788.51 for the year ending December 31, 1905, a gain of 80 per cent. San Francisco's increase in population during those five years, can, of course, only be estimated. On the basis of the registration for the 1905 municipal election, approximately 98,000, San Francisco had, at the time of the 1906 disaster, a population of about 500,000, an increase from the population of 342,782 shown by the 1900 census of practically 50 per cent. in five years.[26] The rapid increase in population, the sustained prosperity of the community, and its prospective development made San Francisco one of the most promising fields for investment in the country. The public service corporations were quick to take advantage of the San Francisco opportunity. Those corporations already established sought to strengthen their position; new corporations strove for foothold in the promising field. Thus, we find the Home Telephone Company, financed by Ohio and Southern California capitalists, seeking a franchise to operate a telephone system in opposition to the Pacific States Telephone and Telegraph Company, which was already established. And we find the Pacific States Company taking active part in municipal politics to prevent the Home franchise or any other opposition telephone franchise being granted. The corporation holding the light and power monopoly, the Pacific Gas and Electric Company, had by the time of the third Schmitz inaugural, practical control of the San Francisco field. But it was face to face with a clamor for reduction of gas rates. The company was charging one dollar a thousand for gas. The Union-Labor party platform of 1905 pledged the Board of Supervisors to a seventy-five-cents-per-thousand rate.