***Public and Private School Principle in the United States: A Statistical Profile, 1987-88 to 1993-94*****Table A16.�Average years of experience in education for public and private school principals,            by selected school and principal characteristics:  1987-88, 1990-91, and 1993-94**-------------------------------------------------------------------------------------------------------                                                          Professional experience in education                                        ---------------------------------------------------------------                                           Average years as teachers          Average years as principals                                       ---------------------------------- -----------------------------School/principal characteristics          1987-88   1990-91   1993-94        1987-88   1990-91   1993-94-------------------------------------------------------------------------------------------------------PUBLICTotal                                        9.8      10.5      11.0           10.0       9.3       8.6    School level         Elementary                          9.8      10.7      11.2           10.4       9.6       8.9         Secondary                           9.7      10.1      10.6            9.3       9.0       8.0         Combined                            9.3      10.4      10.9            8.4       8.0       7.5    School size         Less than 150                       9.7       9.9      10.1            8.2       8.6       8.0         150-499                             9.8      10.8      11.4           10.6       9.6       9.0         500-749                             9.9      10.6      11.0            9.9       9.5       8.6         750 or more                         9.5      10.1      10.6            9.5       9.0       8.3    Minority enrollment         Less than 20%                       9.3      10.3      10.7           10.5       9.9       9.3         20-50%                             10.0      10.3      11.0            9.9       9.1       8.5         More than 50%                      11.0      11.3      11.7            8.7       8.2       7.3    Free-lunch recipients         Less than 20%                       9.4      10.2      11.0           10.4       9.9       9.0         20-49%                              9.6      10.4      10.9           10.1       9.4       8.9         50% or more                        10.8      11.1      11.4            9.1       8.6       8.1    District size         Less than 1,000                     9.1      10.0      10.6            9.5       8.8       8.5         1,000-4,999                         9.7      10.5      11.1           10.2       9.7       8.8         5,000-9,999                         9.4      10.3      10.9           10.6      10.0       9.0         10,000 or more                     10.3      10.8      11.2            9.7       9.0       8.6    Community type         Central city                       10.3      10.9      11.3            9.6       9.0       8.3         Urban fringe/large town             9.6      10.6      11.2           10.7       9.5       8.8         Rural/small town                    9.5      10.2      10.8            9.8       9.4       8.8    Sex         Male                                9.0       9.6      10.0           11.2      10.8      10.2         Female                             12.2      12.5      13.0            6.1       5.8       5.6    Race-ethnicity         American Indian/Alaska Native       9.3      10.0       9.9            9.8       7.7       8.2         Asian/Pacific Islander             10.9      11.2      11.7            7.5       6.7       5.6         Black non-Hispanic                 11.8      12.0      12.7            8.9       8.3       7.0         White non-Hispanic                  9.6      10.3      10.8           10.2       9.6       9.0         Hispanic                            9.6      10.6      11.3            6.7       7.4       6.3         Total minority                     11.0      11.5      12.2            8.4       8.0       6.8-------------------------------------------------------------------------------------------------------**Table A16.�Average years of experience in education for public and private school principals,           by selected school and principal characteristics:  1987-88, 1990-91, and 1993-94(continue)**-------------------------------------------------------------------------------------------------------                                                          Professional experience in education                                        ---------------------------------------------------------------                                           Average years as teachers          Average years as principals                                       ---------------------------------- -----------------------------School/principal characteristics          1987-88   1990-91   1993-94        1987-88   1990-91   1993-94-------------------------------------------------------------------------------------------------------PRIVATETotal                                        9.6       9.4       9.4            7.9       8.6       8.8     School level          Elementary                        10.5      10.2      10.4            8.4       9.0       9.4          Secondary                         11.2      11.2      10.5            7.4       8.1       7.8          Combined                           6.8       6.7       7.4            7.0       7.8       8.0     School size          Less than 150                      7.1       7.2       7.3            6.8       7.5       8.0          150-499                           12.0      11.7      12.0            8.8       9.8       9.7          500-749                           11.8      11.6      11.7           10.7      10.2       9.9          750 or more                       12.5      11.4      12.3            9.9       9.6       9.9     Minority enrollment          Less than 20%                      9.3       9.1       9.5            7.8       8.6       8.7          20-50%                             9.7       9.6       9.1            8.6       8.7       9.3          More than 50%                     10.7      10.5      10.0            8.0       8.5       8.8     Sex          Male                               6.7       6.5       7.6            8.1       9.0       9.0          Female                            12.3      12.1      11.0            7.8       8.6       8.4     Race-ethnicity          American Indian/Alaska Native      6.6       9.7      13.4            6.1      14.1      11.1          Asian/Pacific Islander             6.4       8.0       5.3            9.3      10.9       9.3          Black non-Hispanic                 9.9      10.9       7.4            6.4       6.9       8.3          White non-Hispanic                 9.6       9.4       9.5            8.0       8.7       8.7          Hispanic                          11.0       9.6      12.1            7.9       7.0      10.1          Total minority                     9.4      10.0       8.9            7.5       7.9       9.1-------------------------------------------------------------------------------------------------------SOURCE:  U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey:  1987-88 (School Administrator, Public and Private School, and Teacher Demandand Shortage Questionnaires), 1990-91 (Public and Private School Administrator, Public and PrivateSchool, and Teacher Demand and Shortage Questionnaires), and 1993-94 (Public and Private School Principal, Public and Private School, and Teacher Demand and Shortage Questionnaires).