印度采购需求：门到门送货、海运、空运、铁路运输、门到门海运、国际空运

I'm looking to gather detailed weekly ocean freight rate trends from major ports in China to all countries in Latin America. This information will help us assess shipping costs and optimize our logistics strategy moving forward. Could you please provide insights on the trends, including any variations that may occur seasonally or due to demand shifts? A breakdown of rates by key port would also be beneficial. Thanks in advance for your assistance!