" ", , 10 , .
, 2003
, . , . , . .
" " , , . .
, 1958
"" . . ( ), , "" " " . - , ""
, 2003
, . , , . "". , , .
, 1980
- . , " ", "". , . , "All work and no play makes Jack a dull boy" ( " , "), .
, 1931
. XX . - (" "), (" "). . " " , , .
`, 1999
. , . . , . , 90% . , , . .
, 2000
, . , . . , . .
, 2001
, . , . , , , . , .
, 2004
, , . - , , . -, , , , .
, 1999
. , , - . , ( ) . , , .