run command in sequence

for i in {1..10}; do time curl http://localhost:8000 >/dev/null; done 2>&1 | grep real

root@ubuntu:~# for i in {1..10}; do time curl http://localhost:8000 >/dev/null; done 2>&1 | grep real
real    0m0.011s
real    0m0.006s
real    0m0.005s
real    0m0.006s
real    0m0.006s
real    0m0.005s
real    0m0.009s
real    0m0.011s
real    0m0.005s
real    0m0.005s