1.  One year later .

2.  Every year .

3.  Each year.

4.  Each year, developing space rockets, space shuttles and other technologies costs billions of dollars, which can be otherwise applied in social welfare or is used to help those who are in poverty.

5.  Each year.

6.  Every year in the U. S.

7.  Each year.

8.  Each year.

9.  Each year.

10.  Every year.