Taking RMB out of China (into Thailand)

Hi guys,

I'd like to transfer 20,000RMB back to England when I get to Thailand for holiday.

I know the limit to take out of China is 20,000RMB - would it be possible to take 22,000RMB out, just so I have enough for holiday in Thailand as well?

I'm just worried that declaring such a small amount over and above 20,000RMB will mean a huge amount of forms to fill in etc.