ƽ棬ũٴβԤڣ£Ԥڣֻ21ʧҵȴȽ4.2%Ҳʧҵ͵һΣʧҵʶԣȻҵƫ٣ʧҵʵͣԾҵȻȶ
ƽгķӳҲǺܼң۸Ϊ賿ͻУѹƸߵ㣬У̴
1877µ115֮࣬һ1835-1723غϣ˼۸ѭͬʱҲһ̬ûгֹĸ֡
̬˵µԷŻתѭ͵ͬ߷棬ҲѭζűʽϴµĶܲ
У͵һǶͷˮ룬ˣܶͷ1762һߡϷһλ1815ǰڿڡҲDZ䡣
УؼĻʱ㣬ŷʱ㣬ŷ̵ǿֱǾƵĹؼ
ͨУͻ᷸ѡˣǽλãû·
ԣУҪǻǷ£¼꣬ɡ
ŷ̸ߵ㣬̻䡣
Ȼ飬ôؼĻǰڸߵһߡλ1792-3գ98Ŀ꿴1782-3һߡ
ڻسܷ࣬ҪŷˣŷСʱ͵1780Ͳˣ̷Ҫգ1774-5һߡ
ԭͷ棬䣬һС˫Уǿ̬
1˫ɷŹ
2ߵ
⣬ı֣һԣҪҪǷͽ뵽档
߿4Сʱ߶68.2һߣҲպߵ㡣
̬68ϼɿգ68.75Ŀ꿴66.7¡