Statistical table of dust weather and tree planting conditions in a certain area from 2000 to 2005 Year (year) 2000 2001 2002 2003 2004 2005

(1) (15+11+8+3+5+6)÷6

=48÷6,

=8 (times);

（40302053100）÷6，

=1080÷6，

=180 (hectare);

=1080÷6 p>

Answer: From 2000 to 2005, the average number of sand and dust weather events in this area was 8 times per year, and an average of 180 hectares of trees were planted per year.

(2) Sand and dust weather bar chart: