marks. After the change, the amount required in 1893 for the first class in Berlin varied between twelve marks in the poorest original electoral district and 27,000 marks in Voßstrasse (where the Reich Chancellery was located). The change made it both easier for many urban citizens with low and middle incomes to move up to the second or even first class and for wealthy citizens in rich primary election districts to slip into the third class; Reich Chancellor Bernhard von Bülow had to vote in the third class in 1903. The share of voters in the classes fluctuated over time and also regionally. Nationwide, the third class accounted for about 80 to 85 percent of eligible voters, and the first class for about 4%. In 1913, the third class accounted for 79.8% of eligible voters (down from 85.3% in 1898), the second class for 15.8% (up from 11.4% in 1898), and the first class for 4.4% (up from 3.3% in 1898). In 1913 there were 190,444 primary electoral votes statewide in the first class and 1,990,262 in the third class. Since both classes elected the same number of electors, the votes of first class primary voters had a weight 10.45 times greater than those of third class voters. Election of electors (primary election) Choosing electors took place in a meeting of the primary voters on a day that was uniform throughout the state. The election was held separately by classes. If there was a total of three electors to be chosen, each class elected one; if there were six, each elected two. If there were four electors to be chosen, the first and third classes each elected one and the second class two; if there were 5 electors to be chosen, the first and third classes each elected two and the second class elected only one. An elector had to be eligible to vote in the primary election district but did not have to be a member of the class in which he was elected. The third class voted first, the first last. Voting was not secret. When voting was completed in a class, its voters, unless they were members of the electoral board, had to leave the polling station. The voters of the first class could observe the voting behavior of all voters, those of the second could observe the third, while the voters of the third class did