need help with what SQL commands to use to get the following answers regarding the table TRIPS.

e$.$ How many trips were made in January?

Answer: $\_\_\_\_\_\_$

SQL: $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

f$.$ Find the minimum and maximum $($not empty$)$ years of all trips.

Answer: $\_\_\_\_\_\_\_\_\_\_\_\_$

SQL: $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

g$.$ Find the number of trips for each year included in the dataset. $($Hint: it looks like $2009(123$ trips$)$; $2010(123$ trips$)$; etc...$)$

Answer: $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ SQL: $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

h$.$ How many trips are missing the value for the column year?

Answer: $\_\_\_\_\_\_\_\_\_$

SQL: $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$