|
|
|
2017 |
|
2016 |
|
||||||
|
|
|
Options |
|
Weighted |
|
Options |
|
Weighted |
|
||
|
|
|
|
|
|
|
|
|
|
|
||
|
Balance at beginning of year |
|
980,905 |
|
$ |
61.71 |
|
1,482,494 |
|
$ |
60.44 |
|
|
Exercised |
|
(215,978 |
) |
59.40 |
|
(399,689 |
) |
56.48 |
|
||
|
Cancelled |
|
(169,100 |
) |
60.65 |
|
(101,900 |
) |
63.79 |
|
||
|
|
|
|
|
|
|
|
|
|
|
||
|
Balance at end of year |
|
595,827 |
|
$ |
62.84 |
|
980,905 |
|
$ |
61.71 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
Vested options at end of year |
|
226,200 |
|
$ |
58.78 |
|
163,550 |
|
$ |
54.90 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|