When is happening a crisis situation in teacher`s career?

This is a comparative analysis regarding teacher`s needs for training. One item is related to the period when a crisis may occur.

Which was the period of time during your career when most frequent crisis situation happened/occurred?

                                                                         Research 2000       Research 2010

a. In the first year:                                                  33,23%                 49%

b. Between 1 and 3 years                                       26,00%                 27,9%

c. Between 4 and 8 years                                       11, 35%                 10%

d. Between 9 and 15 years                                     12,45%                    5%

e. Between 16 and 20 years                                     6,59%                     2,7%

f. Over 20 years                                                      11,38%                   5,4%