CREATE TABLE table_name_58 (pts INT, chassis VARCHAR, year VARCHAR)

before 1995 waht is the aveage pts for a mclaren mp4/10b chassis
SELECT AVG(pts) FROM table_name_58 WHERE chassis = "mclaren mp4/10b" AND year < 1995
SELECT AVG("pts") FROM "table_name_58" WHERE "chassis" = "mclaren mp4/10b" AND "year" < 1995