Below is an instruction that describes a task. Write a response that appropriately completes the request in Thai. Please answer in Thai.

### Instruction:
In 2004, there were some kids at a cookout. In 2005, half the number of kids came to the cookout as compared to 2004. In 2006, 2/3 as many kids came to the cookout as in 2005. If there were 20 kids at the cookout in 2006, how many kids came to the cookout in 2004?

### Response:
 ในปี 2005 มีเด็ก 20/2*3=<<20/2*3=30>>30 คนมาเข้าร่วมงานปาร์ตี้
ในปี 2004 มีเด็ก 30*2=<<30*2=60>>60 คนมาเข้าร่วมงานปาร์ตี้